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An epistomatic leaf is?
A. Sunflower
B. Maize
c. Nymphaea
D. calotropis
| 0 |
Biology
|
Baking powder used to make a cake is a
mixture of \( \operatorname{starch}, N a H C O_{3} \) and
\( \boldsymbol{C} \boldsymbol{a}\left(\boldsymbol{H}_{2} \boldsymbol{P} \boldsymbol{O}_{4}\right)_{2} . \) The function of
\( \boldsymbol{C a}\left(\boldsymbol{H}_{2} \boldsymbol{P} \boldsymbol{O}_{4}\right)_{2} \) is:
A \( \cdot \) to slow down the release of \( C O_{2} \)
B. being acidic in nature and give \( C O_{2} \) when moistened with \( N a H C O_{3} \)
\( c . \) to act as a fille
D. none of these
| 1 |
Chemistry
|
Which allotrope of carbon is good conductor of electricity?
A. charcol
B. coal
c. Gas carbon
D. graphite
| 1 |
Chemistry
|
f \( (k, 2-2 k),(-k+1,2 k),(-4- \)
\( k, 6-2 k) \) are collinear, then \( k= \)
\( A \cdot+1 \)
B. -
\( c \cdot-2 \)
\( D .2 \)
| 2 |
Maths
|
If Anil's salary is \( 20 \% \) less than Raju's
salary, then by what percentage is Raju's salary more than that of Anil?
| 2 |
Maths
|
What is the pH value of base?
\( A \cdot>7 \)
B. \( <7 \)
\( c \cdot=7 \)
D. None
| 1 |
Chemistry
|
Assertion
Nylon wire is stronger than steel wire.
Reason
Nylon is a fibre while steel is an alloy.
A. Both assertion and reason are correct and reason is
the correct explanation for assertion
B. Both assertion and reason are correct but reason is not the correct explanation for assertion
C. Assertion is correct but reason is incorrect
D. Both assertion and reason are incorrect
| 1 |
Chemistry
|
The particle is executing S.H.M. on a line \( 4 \mathrm{cms} \) long. If its velocity at its mean position is \( 12 \mathrm{cm} / \mathrm{sec}, \) its frequency in Hertz will be :
A \( \cdot \frac{2 \pi}{3} \)
в. \( \frac{3}{2 \pi} \)
c.
D. \( \frac{3}{\pi} \)
| 3 |
Physics
|
Which of the following is a bad conductor of heat?
A. woodd
B. Aluminium
c. Iron
D. Bronze
| 3 |
Physics
|
Upper molars in human dentition have
A. Four roots
B. Three roots
c. Two roots
D. single root
| 0 |
Biology
|
Integrate \( \int \frac{1}{x^{1 / 2}+x^{1 / 3}} d x \)
| 2 |
Maths
|
Which one of the following is specific function of the liver?
A. Excretion
B. Glycogenolysis
c. Digestion
D. Histolysis
| 0 |
Biology
|
Diagonals of a rectangle are:
A. equal to each other
B. not equal
C. one is double of other
D. none
| 2 |
Maths
|
Nitrogen is liberated by the thermal decomposition of :
A. \( N H_{4} N O_{2} \)
в. \( \operatorname{NaN}_{3} \)
c. \( \left(N H_{4}\right)_{2} C r_{2} O_{7} \)
D. All of these
| 1 |
Chemistry
|
Which of the following pair will form an ideal solution?
A. Chlorobenzen, chloro ethane
B. Benzene, Toluene
c. Acetone, chloroform
D. water, HCl
| 1 |
Chemistry
|
Assertion
Equivalent mass of \( K M n O_{4} \) is equal to
one-third of its molecular mass when it
acts as an oxidising agent in an alkaline medium.
Reason
Oxidation number of \( M n \) is +7 in
\( \boldsymbol{K} \boldsymbol{M} \boldsymbol{n} \boldsymbol{O}_{4} \)
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
| 1 |
Chemistry
|
The frequency of sound waves can be
expressed in
A . \( \mathrm{Hz} \)
B. Cycles
\( c \cdot s^{-1} \)
D. All of these
| 3 |
Physics
|
The ratio of time taken by an electron in revolution around the H-nucleus in 2nd
and 3 rd orbits is:
A .2: 3
B . 4: 8
\( \mathbf{c} \cdot 8: 27 \)
D. 27: 8
| 1 |
Chemistry
|
A clock pendulum having coefficient of linear expansion \( \boldsymbol{\alpha}=\mathbf{9} \times \mathbf{1 0}^{-\mathbf{7}} /^{\circ} \mathbf{C} \) has
a period of \( 0.5 s \) at \( 20^{\circ} \mathrm{C} . \) If the clock is
used in a climate where the
temperature is \( 30^{\circ} \mathrm{C} \), how much times
does the clock lose in each oscillation?
\( (g=\text { constant }) \)
A \( \cdot 2.5 \times 10^{-7} \mathrm{s} \)
B . \( 5 \times 10^{-7} \) s
D. \( 2.25 \times 10^{-6} \mathrm{s} \)
| 3 |
Physics
|
Plastic can be used for:
A. polythene bags
B. food packaging
C . electrical appliances
D. All of the above
| 1 |
Chemistry
|
Find the value of \( 64.75-75.97+36.82 \)
A . 25.60
B. 23.98
c. 29.76
D. 21.96
| 2 |
Maths
|
\( A B C \) is an equilateral triangle of side 6 cm. If a circle of radius \( 1 \mathrm{cm} \) is moving inside and along the sides of the triangle, then locus of the centre of the circle is an equilateral triangle of side
A. \( 5 \mathrm{cm} \)
B. \( 4 \mathrm{cm} \)
c. \( (6-2 \sqrt{3}) \) ст
D. \( (3+\sqrt{3}) \) cm
| 2 |
Maths
|
Identify the true statement.
A. The \( X \) -axis is a vertical line
B. The \( Y \) -axis is a horizontal line
C. The scale on both the axes must be the same in a
Cartesian plane
D. The point of intersection between the \( X \) -axis and \( Y \) axis is called the origin
| 2 |
Maths
|
A coil of metal wire is kept stationary in a non-uniform magnetic field. An emf is induced in the coil.
A. True
B. False
| 3 |
Physics
|
A ship sends a longitudinal wave towards the bottom of the sea. The wave
returns from the bottom of the sea after
\( \mathbf{2 . 0} s . \) The bulk modulus of the sea water
is \( 2.2 \times 10^{9} N m^{-2} \) and the density of
water is \( 1.1 \mathrm{g} \mathrm{cm}^{-3} . \) The depth of the sea is about
A . \( 2200 m \)
в. 2000 \( m \)
c. \( 1400 m \)
D. \( 1100 m \)
| 3 |
Physics
|
For the following electrochemical cell at
\( 298 K \)
\( \boldsymbol{P t}(s)\left|\boldsymbol{H}_{2}(\boldsymbol{g}, \mathbf{1} \boldsymbol{b a r})\right| \boldsymbol{H}^{+}(\boldsymbol{a} \boldsymbol{q}, \mathbf{1} \boldsymbol{M}) \| \boldsymbol{M}^{4+} \)
\( \boldsymbol{E}_{c e l l}=\mathbf{0 . 0 9 2 V} \) when \( \frac{\left[\boldsymbol{M}^{2+}(\boldsymbol{a} \boldsymbol{q})\right]}{\left[\boldsymbol{M}^{4+}(\boldsymbol{a q})\right]}=\mathbf{1 0}^{x} \)
Given \( : \boldsymbol{E}_{M^{4+} / M^{2+}}^{0}= \)
\( \mathbf{0 . 1 5 1} V ; \mathbf{2 . 3 0 3} \frac{\boldsymbol{R T}}{\boldsymbol{F}}=\mathbf{0 . 0 5 9} \boldsymbol{V} \)
The value of \( x \) is :
A . -2
B. -
\( c \cdot 1 \)
D.
| 1 |
Chemistry
|
A glass rod is rubbed with silk, is found positively charged. This is because.
A. Electrons are transferred from glass rod to silk.
B. Electrons are transferred from silk to glass rod.
c. Protons are transferred from glass rod to silk.
D. Protons are transferred from silk to glass rod.
| 3 |
Physics
|
A reaction involving an aromatic nucleus is usually initiated by:
A. free radicals
B. molecules possessing a lone pair of electrons
c. nucleophiles
D. electrophiles
| 1 |
Chemistry
|
A solid cube has volume \( (1000 \pm 0.3) \)
\( c m^{3} . \) The side of the cube is
A \( \cdot(10 \pm 0.1) \) ст
в. \( (10 \pm 0.01) \) ст
c. \( (10 \pm 0.001) \mathrm{cm} \)
D. \( (10 \pm 0.003) \) с \( m \)
| 3 |
Physics
|
A ball is released from the top of a tower
of height h metres. It takes T seconds to reach the ground. What is the position of the ball in \( T / 3 \)
seconds?
A. h/9 metre from the ground
B. 7h/9 metre from the ground
c. \( 8 \mathrm{h} / 9 \) metre from the ground
D. 17h/18 metre from the ground
| 3 |
Physics
|
Which of the following options does not
show instantaneous rate of reaction at
\( 40^{t h} \) second?
A \( \frac{V_{5}-V_{2}}{50-30} \)
3. \( \frac{V_{4}-V_{2}}{50-30} \)
\( c \cdot \frac{V_{3}-V_{2}}{40-30} \)
D. \( \frac{V_{3}-V_{1}}{40-20} \)
| 1 |
Chemistry
|
Assertion
Red phosphorus is preferred to white phosphorus in the manufacture of
matches.
Reason
Red phosphorus is non-poisonous in
nature.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
| 1 |
Chemistry
|
A small block slides with velocity
\( 0.5 \sqrt{g} r \) on the horizontal friction less
surface as shown in the figure. The
block leaves the surface at point \( C . \) The
angle \( \theta \) in the figure is:
\( \mathbf{A} \cdot \cos ^{-1}(4 / 9) \)
B \( \cdot \cos ^{-1}(3 / 4) \)
\( \mathbf{C} \cdot \cos ^{-1}(1 / 2) \)
D. none of the above
| 3 |
Physics
|
Thermodynamically, in which form of carbon is the most stable?
A. coal
B. Fullerenes
c. Diamond
D. Graphite
| 1 |
Chemistry
|
A planet was suddenly stooped in its orbit supposed to be circular. The time it will fall on to the sun is, if time period
of planet's revolution is \( T \)
A \( \cdot \frac{T}{2} \)
в. \( \frac{\sqrt{2} T}{4} \)
c. \( \frac{\sqrt{2} T}{8} \)
D. \( \sqrt{2} T \)
| 3 |
Physics
|
\( \boldsymbol{A} \boldsymbol{g} \mid \boldsymbol{A} \boldsymbol{g}^{\oplus}(\boldsymbol{1} \boldsymbol{M})\left\|\boldsymbol{A} \boldsymbol{g}^{\oplus}\right\| \boldsymbol{A} \boldsymbol{g} \)
\( 0.5 \mathrm{F} \) electricity is first passed in this LHS (anode) and 1 F of electricity is passed in the RHS (cathode) making them independent electrolytic cells at 298 K. EMF of the cell after electrolysis
will:
A. increase
B. decrease
c. not change
D. none of the above
| 1 |
Chemistry
|
The equation of a line passing through
(2,-3) and inclined at an angle of \( 135^{\circ} \)
with the positive direction of \( x \) -axis is.
A. \( x+y-1=0 \)
в. \( x+y+1=0 \)
c. \( x-y-1=0 \)
D. \( -x+y+1=0 \)
| 2 |
Maths
|
Show that \( f(x)=e^{2 x} \) is increasing on \( R \)
| 2 |
Maths
|
The diagrams show different resistor
arrangements.
Which arrangement has the smallest
combined resistance?
\( A \)
B.
\( c \)
\( D \)
| 3 |
Physics
|
Match the names of the parts listed
with the names of the organs.
\begin{tabular}{lll|l}
List I (Parts) & \multicolumn{3}{c} { List II } \\
& (Organs) & \\
A & Bicuspid valve & p & Brain \\
B & Nephron & q & Liver \\
C & Alveoli & r & Heart \\
D & Cerebrum & s & Kidney \\
& t & Lungs
\end{tabular}
\( \mathbf{A} \)
\( A-r, B-t, C-s, D-R \)
B. \( A-r, B-s, C-t, D-B \)
\( c \cdot A-s, B-q, C-p, D-t \)
D. A-s, B-r, C- p, D-
| 0 |
Biology
|
A square yard has area \( 1764 \mathrm{m}^{2} \). From a
corner of this yard, another square part
of area \( 784 \mathrm{m}^{2} \) is taken out for public
utility. The remaining portion is divided in to 5 equal square parts. What is the perimeter of each of these equal parts?
| 2 |
Maths
|
Very short answer type. What is the function/role of bulliform
cells in grasses?
| 0 |
Biology
|
The diagram shows the graphs of
pressure vs density for a given mass of
an ideal gas at two temperatures \( T_{1} \) and \( T \)
2
\( A \cdot T_{1}>T_{2} \)
B. \( T_{1}=T_{2} \)
\( c \cdot T_{1}<T_{2} \)
D. Any of the three are possible
| 3 |
Physics
|
Find the principal value of \( \operatorname{cosec}^{-1}\left(\frac{2}{\sqrt{3}}\right) \)
| 2 |
Maths
|
Assertion
Both Be and Al can form complexes
\( \operatorname{such} \operatorname{as} B e F_{4}^{-2} \) and \( A I F_{6}^{3-} \)
respectively, \( B e F_{6}^{-3} \) is not formed.
Reason
In the case of Be, no vacant d-orbitals
are present in its outermost shell.
These questions consist of two statements each, printed as assertion
and reason. While answering these questions you are required to choose any one of the following four responses.
A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion, then mark
B. If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion, then mark
C. If Assertion is true statement but Reason is false, then mark
D. If both Assertion and Reason are false statements, then mark
| 1 |
Chemistry
|
Incomplete breakdown of glucose in
muscles results in the formation of
A. Alcohol and water
B. Alcohol and lactic acid
c. \( C O_{2} \) and water
D. Lactic acid
| 0 |
Biology
|
The frequency \( f \) of vibration of mass \( m \)
suspended from a spring of spring
contact \( k \) is given by \( \boldsymbol{f}=\boldsymbol{c} \boldsymbol{m}^{\boldsymbol{x}} \boldsymbol{k}^{\boldsymbol{y}} \)
Where \( c= \) dimensionless constant
then find the values of \( x \) and \( y \)
| 3 |
Physics
|
Which one of the following statements
is false?
A. Work is a state function
B. Temperature is a state function
C. Work appears at the boundary of the system
D. Change in the state is completely defined when the initial and final states are specified
| 1 |
Chemistry
|
When a glass rod is rubbed with silk,
both become charged due to:
A. migration of protons
B. exchange of electrons and protons
c. migration of electrons
D. migration of neutrons
| 3 |
Physics
|
A radioactive sample can decay by two different processes. The half-life for the
first process is \( T_{1} \) and that for the
second process is \( T_{2} \). The effective half-
life \( T \) of the radioactive sample is
A \( \cdot T=T_{1}+T_{2} \)
в. \( \frac{1}{T}=\frac{1}{T_{1}}+\frac{1}{T_{2}} \)
c. \( T=\frac{T_{1}+T_{2}}{T_{1} T_{2}} \)
D. \( T=\frac{T_{1}-T_{2}}{T_{1} T_{2}} \)
| 3 |
Physics
|
\( A \) and \( B \) are two identical spherical
charged bodies which repel each other with force \( F, \) kept at a finite distance apart A third uncharged sphere of the same size is brought in contact with sphere \( \mathrm{B} \) and removed. It is then kept at mid-point of \( A \) and \( B \) find the magnitude of force on \( \mathbf{C} \)
\( A \cdot F / 2 \)
B. F/8
\( c \cdot F \)
D. zero
| 3 |
Physics
|
Assertion
The reactions taking place in the sun
are nuclear fusion reactions.
Reason
The main reason for nuclear fusion
reactions in the sun is that \( \boldsymbol{H}_{2} \) is
present in the sun's atmosphere so that
hydrogen nuclei can fuse to form helium.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect
| 3 |
Physics
|
The property to restore the natural shape or to oppose the deformation is called:
A. elasticity
B. plasticity
c. ductility
D. none of the above
| 3 |
Physics
|
If the angle of incidence is \( 80^{\circ}, \) what will be the angle of reflection with respect to the normal drawn perpendicular at the point of reflection?
\( A \cdot 80 \)
B. 100
\( c \cdot 160 \)
D. 20
| 3 |
Physics
|
Q Type your question
orgamisıng nis graduated cymnaers In the hopes of keeping his office tidy and setting a good example for his students. He has beakers with diameters, in inches, of \( \frac{1}{2}, \frac{3}{4}, \frac{4}{5}, 1 \) and \( \frac{5}{4} . \) With his original five cylinders, professor Buckingham realises that he is missing a cylinder necessary for his upcoming lab demonstration for Thursday's class. He remembers that the cylinder he needs when added to the original five, will create a median diameter value of
for the set of six total cylinders. He
\( \overline{\mathbf{1 0}} \)
also knows that the measure of the
sixth cylinder will exceed the value of the range of the current five cylinders by a width of anywhere from \( \frac{1}{4} \) inches to \( \frac{1}{2} \) inches, inclusive. Based on the data, what is one possible value of \( y \), the diameter of this missing sixth cylinder?
A \( .1 \leq y \leq 1.25 \)
в. \( 2 \leq y \leq 2.25 \)
c. \( 3 \leq y \leq 3.25 \)
D. \( 4 \leq y \leq 4.25 \)
| 2 |
Maths
|
Assertion
faraday is the charge that liberates 1 eq. of metal at cathode.
Reason
Passsage of 1 faraday charge through
aq. \( \mathrm{MgCl}_{2} \) liberates 12 g Mg at cathode.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
c. Assertion is correct but Reason is incorrect
D. Assertion is incorrect but Reason is correct
| 1 |
Chemistry
|
The structural gene which synthesizes mRNA that translates the permease protein is
A. Y-gene
B. \( P^{53} \) gene
c. A- gene
D. z-gene
| 0 |
Biology
|
Refer to the given figure of human
urinary system and select the option
that correctly identifies the labelled
parts \( A \) to \( E \)
A. Superior vena cava Inferior vena cava Dorsal aorta Urethra Pelvis
B. Inferior vena cava Superior vena cava Dorsal aorta Urinary bladder Cortex
c. Ureter Inferior vena cava Dorsal aorta Urinary bladder Pelvis
D. Dorsal aorta Inferior vena cava Superior vena cava Urinary bladder Cortex
| 0 |
Biology
|
Two resistors \( \boldsymbol{R}_{1}(\mathbf{2 4} \pm \mathbf{0 . 5}) \mathbf{\Omega} \) are
joined in series. The equivalent
resistance is
A . \( 32 \pm 0.33 \Omega \)
B \( .48 \pm 1 \Omega \)
c. \( 32 \pm 0.2 \Omega \)
D. \( 32 \pm 0.9 \Omega \)
| 3 |
Physics
|
and \( m_{3} \) are connected to the ends of a
mass-less rod of length \( L \) which lies at rest on a smooth horizontal plane. At
\( t=0, \) an explosion occurs between \( m_{2} \)
and \( m_{3}, \) and as a result, mass \( m_{3} \) is
detached from the rod, and moves with
a known velocity \( v \) at an angle of \( 30^{\circ} \)
with the y-axis. Assume that the
masses \( m_{2} \) and \( m_{3} \) are unchanged
during the explosion.
What is the velocity of the centre of
mass of the system consisting of three masses after the expulsion?
A \( \cdot \frac{v}{4}(\hat{i}-3 \hat{j}) \)
B \( \cdot \frac{v}{4}(-\hat{i}+\sqrt{3} \hat{j}) \)
c. \( -v \)
D. none of the above
| 3 |
Physics
|
Choose the correct option which describe the magnetic field produced by a current in a long, straight wire?
A. The field in uniform
B. The field increases in strength as the distance from the wire increases
c. The field lines are directed parallel to the wire, but opposite to the direction of the current
D. The field lines are directed radially outward from the wire
E. The field lines form circles about the wire
| 3 |
Physics
|
Hard water is unfit for laundries
because:
This question has multiple correct options
A. consumes much soap
B. leaves dirty strains of ' \( C a \) ' and ' \( M g^{\prime} \)
C. causes irritation on skin
D. water is very hard to handle
| 1 |
Chemistry
|
If 1 and 2 are the wavelengths of characteristic X-ray and gamma rays respectively, then the relation between
them is :
\( A \cdot 1<2 \)
B \( .1=2 \)
\( c \cdot 1>2 \)
D. None of these
| 3 |
Physics
|
Striations in the striated muscles are
due to
A. Projections of myosin
B. Absence of myofilaments
c. Presence of myofilaments
D. specilaized arrangement of myofilaments
| 0 |
Biology
|
Explain the appropriate reason for the following statement:
(a)Size of \( M g^{2+} \) is less than Mg.
(b) Electron gain enthalpy of Cl is more than that of F.
| 1 |
Chemistry
|
A charge of \( 10^{-9} C \) moves from \( X \) to \( Z \)
Find the work done by the electric field due to the charge \( Q=2 C \) in moving the
charge from \( X \) to \( Z \). The value of
coulomb's constant is \( 9 \times 10^{9} N m^{2} C^{-2} \)
A . \( 0 . J \)
В. \( 150 J \)
\( c .300 J \)
D. \( 560 J \)
E. \( 1,000 J \)
| 3 |
Physics
|
The random variable \( x \) follows normal
distribution
Then the value of \( C \) is
A \( \cdot \sqrt{2 \pi} \)
в. \( \frac{1}{\sqrt{2 \pi}} \)
c. \( 5 \sqrt{2 \pi} \)
D. \( \frac{1}{5 \sqrt{2 \pi}} \)
| 2 |
Maths
|
\( \Delta A B C \sim \Delta L M N \cdot \ln \Delta A B C, A B= \)
\( 5.1 \mathrm{cm}, \angle B=55^{\circ}, \angle C=65^{\circ} \) and
\( \frac{A C}{L N}=\frac{3}{5}, \) then construct \( \Delta L M N \)
| 2 |
Maths
|
The most electronegative element
belongs to:
A. group 1
B. group 18
c. group 17
D. group 15
| 1 |
Chemistry
|
If \( P(E) \) denotes the probability of an event \( \mathrm{E} \), then
A. \( P(E)<0 \)
В. \( P(E)>1 \)
c. \( 0 \leq P(E) \leq 1 \)
D. \( -1 \leq P(E) \leq 1 \)
| 2 |
Maths
|
The significant result deduced from the
Rutherford's scattering experiment is
that
A. whole of the positive charge is concentrated at the centre of atom
B. there are neutrons inside the nucleus
C . \( \alpha \) -particles are helium nuclei
D. electrons are embedded in the atom
E. electrons are revolving around the nucleus
| 3 |
Physics
|
From the prices of shares \( X \) and \( Y \) below find out which is more stable in
value:
35 54 52 53 56 \( x \)
108 \( Y \) 107 \( \quad 105 \) 105 106
| 2 |
Maths
|
The auto reduction process is not used in the metallurgy of
A. \( H g \)
в. \( C u \)
\( c \cdot P b \)
D. \( F e \)
| 1 |
Chemistry
|
The net external force acting on the disk
when its centre of mass is at
displacement x with respect to its equilibrium position is
4. \( k x \)
3. \( 2 k x \)
\( c \cdot-\frac{2 k x}{3} \)
D. \( -\frac{4 \mathrm{kx}}{3} \)
| 3 |
Physics
|
A concave mirror of focal length \( f, \) in vacuum, is placed in a medium of refractive index \( 2 . \) Its focal length in the medium is :
\( A \cdot \frac{f}{2} \)
B. \( f \)
\( c \cdot 2 f \)
D. \( 4 f \)
| 3 |
Physics
|
Write the valencies of \( X, Y \) in the
chemical compound having the following lewis notation.
| 1 |
Chemistry
|
Identify the correct order of solubility in aqueous medium:
A \( \cdot C u S>Z n S>N a_{2} S \)
в. \( Z n S>N a_{2} S>C u S \)
c. \( N a_{2} S>C u S>Z n S \)
D. \( N a_{2} S>Z n S>C u S \)
| 1 |
Chemistry
|
Which of the following is the \( A \) in the
given reaction
A. Benzene diazonium chloride
B. Benzene
c. Nitro benzen
D. Amino benzene
| 1 |
Chemistry
|
In an experiment with a beam balance,
an unknown mass \( m \) is balanced by two
known masses of \( 16 \mathrm{kg} \) and \( 4 \mathrm{kg} \) as
shown in fig. Find \( \boldsymbol{m} \)
A . \( 10 \mathrm{kg} \)
B. \( 6 k g \)
\( c .8 k g \)
D. \( 12 \mathrm{kg} \)
| 3 |
Physics
|
The diagonals of a parallelogram
\( A B C D \) intersect at \( O . A \) line through
intersect \( A B \) at \( X \) and \( D C \) at \( Y \). Identify
the correct option
A. \( O X=O Y \)
в. \( O X>O Y \)
c. \( O X<O Y \)
\( \cdot O X-O Y=0 \)
0
| 2 |
Maths
|
Which of the following is not a complex?
A. Potassium ferricyanide
B. Ferrous ammonium sulphate
C . Potassium ferrocyanide
D. Tetraaminecopper
(II) sulphate
| 1 |
Chemistry
|
Among the following which one is the formula for noncyclic, saturated
hydrocarbon?
\( \mathbf{A} \cdot C_{6} H_{12} \)
в. \( C_{7} H_{14} \)
с \( . C_{7} H_{16} \)
D. \( C_{7} H_{18} \)
E \( . C_{7} H_{12} \)
| 1 |
Chemistry
|
electric field is along negative \( x \) direction and it is constant. A particle having mass \( m \) and charge \( q \) is projected along \( x \) -direction with speed \( V_{0} . \) An additional force \( \overrightarrow{\boldsymbol{F}}=\overrightarrow{\boldsymbol{C}} \times \overrightarrow{\boldsymbol{V}} \) is
acting on the charge where \( \vec{V} \) is velocity vector and \( \vec{C} \) is a constant vector. The
charge comes out of region with speed \( \boldsymbol{V}_{0} \)
\( 2^{\text {as shown in figure, then the }} \)
magnitude of electric field is :
A \( \cdot \frac{3}{8} \frac{m V_{0}^{2}}{q d} \)
B. \( \frac{4}{3} \frac{m V_{0}^{2}}{q d} \)
c. \( \frac{8}{3} \frac{m V_{0}^{2}}{q d} \)
D. Can't be determined
| 3 |
Physics
|
Answer the question in the limit of
maximum 50 words.
Describe the dispersion of light by glass prism with neat figure.
| 3 |
Physics
|
According to Hooke's law of elasticity, if stress is increased, the ratio of stress to
strain
A . decreases
B. increases
c. becomes zero
D. remains constant
| 3 |
Physics
|
Fertilisation is defined as the process
by which
A. a diploid spermatozoan unites with a haploid ovum to form a triploid zygote
B. a haploid spermatozoan unites with a haploid ovum to form a diploid zygote
C . a diploid spermatozoan unites with a diploid ovum to form a diploid zygote
D. a diploid spermatozoan unites with a haploid ovum to form a diploid zygote.
| 0 |
Biology
|
Find the equation of the tangent and the normal to the following curve at the indicated point. \( c^{2}\left(x^{2}+y^{2}\right)=x^{2} y^{2} \) at \( \left(\frac{x}{\cos \theta}, \frac{c}{\sin \theta}\right) \)
| 2 |
Maths
|
Two isosceles triangles have equal
vertical angles and their areas are in the ratio \( 36: 25 . \) Find the ratio of their
corresponding heights.
| 2 |
Maths
|
Milk is an example of water in oil emulsions.
A. True
B. False
c. Ambiguous
D. Data insufficient
| 1 |
Chemistry
|
For the coagulation of \( 100 m L \) of
arsenious sulphide solution, \( 5 m L \) of
\( 1 M N a C l \) is required. What is the
coagulating power of \( N a C l ? \)
| 1 |
Chemistry
|
Define the terms:
¡) Declination
ii) Inclination or Dip.
| 3 |
Physics
|
Acetabulum is located in:
A. collar bone
B. hip bone
c. shoulder bone
D. thigh bone
| 0 |
Biology
|
Hydroponics is growing plants
A. Without soil
B. Without organic matter
C. In water
D. All the above
| 0 |
Biology
|
A reduction of \( 12.5 \% \) in the price of dining table brought down its price at Rs. \( 4375 . \) What is the original price of
the dining table?
\( \mathbf{A} \cdot 8,000 \)
в. 5,000
c. 5,500
D. 6,080
| 2 |
Maths
|
The correct equation of nuclear fusion
reaction is
\( \mathbf{A} \cdot_{1} H^{1}+_{1} H^{1} \rightarrow H_{2} \)
\( \mathbf{B} \cdot_{1} H^{2}+_{1} H^{1} \rightarrow_{2} H e^{4}+_{0} n^{1} \)
\( \mathbf{C} \cdot_{1} H^{2}+_{1} H^{2} \rightarrow_{2} H e^{4}+ \)energy
\( \mathbf{D} \cdot 2 H_{2}+3 H_{2} \rightarrow 5 H_{2} \)
| 3 |
Physics
|
A vessel, whose bottom has round holes
with diameter 0.1 mm, is filled with
water. The maximum height up to
which water can be filled without
leakage is
A. \( 100 \mathrm{cm} \)
B. \( 75 \mathrm{cm} \)
\( c .50 \mathrm{cm} \)
D. \( 30 \mathrm{cm} \)
| 3 |
Physics
|
How many moles of \( C O_{2} \) are in 1.53 g
\( C O_{2} ? \)
A. \( 1.807 \times 10^{-24} \)
4 \( 47 \times 10^{77} \) ?
В. \( 3.476 \times 10^{-2} \)
c. \( 1.717 \times 10^{-2} \)
D. \( 1.204 \times 10^{24} \)
E . \( 2.414 \times 10^{-1} \)
| 1 |
Chemistry
|
A box contains 100 cards marked with
numbers 1 to \( 100 . \) If one card is drawn
randomly from the box. Find the probability that it bears.
(1) Even prime number.
(2) A number divisible by 7.
(3) The number at unit place is 9
| 2 |
Maths
|
The unit vector in the direction of \( \overrightarrow{\boldsymbol{a}} \) is
A \( \cdot \frac{\vec{a}}{|\vec{a}|} \)
в. \( \vec{a}|\vec{a}| \)
\( c \cdot a^{2} \)
D.
| 2 |
Maths
|
Obtain the probability distribution of
the number of sixes in two tosses of a
fair die
| 2 |
Maths
|
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