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As they release hydrolase that digest old and damaged cells, the term suicide bags is aptly used by cell biologists for
A. Golgi bodies
B. Lysosomes
c. Glyoxysomes
D. Peroxisomes
| 0 |
Biology
|
The correct order of dipole moments is :
A \( \cdot C H_{4}<N F_{3}<N H_{3}<H_{2} O \)
в. \( N F_{3}<C H_{4}<N H_{3}<H_{2} O \)
c. \( N H_{3}<N F_{3}<C H_{4}<H_{2} O \)
D. \( H_{2} O<N H_{3}<N F_{3}<C H_{4} \)
| 1 |
Chemistry
|
How many protons and neutrons are there in the nuclei of \( _{12}^{25} M g \)
A \( \cdot 12,13 \)
B. 13, 12
c. 25,12
D. 12, 25
| 3 |
Physics
|
The number of sigma bonds in Ziese's salt is:
A . 4
B. 6
\( c \cdot 8 \)
D. none of these
| 1 |
Chemistry
|
Two planets \( A \) and \( B \) have the same
average density. Their radii \( \boldsymbol{R}_{A} \) and \( \boldsymbol{R}_{B} \)
are such that \( \boldsymbol{R}_{\boldsymbol{A}}: \boldsymbol{R}_{\boldsymbol{R}}=\boldsymbol{3}: \boldsymbol{1} \) If \( \boldsymbol{g}_{A} \) and
\( g_{B} \) are the acceleration due to gravity at
the surfaces of the planets, the \( g_{A}: g_{B} \)
equals
A . 3: 1
B. 1: 3
c. 9: 1
D. 1: 9
E . \( \sqrt{3}: 1 \)
| 3 |
Physics
|
Consider a sphere of radius \( \mathrm{R} \) made of
glass of refractive index \( \mu . \) A small
object moves along the diameter with a constant velocity u. Find the velocity of the image as seen by an observer outside when the object passes through
center
\( A \)
B. \( \mu u \)
c. \( u / \mu \)
D.
| 3 |
Physics
|
Conversion of chlorobenzene to phenol
involves?
A. electrophilic substitution
B. nucleophilic substitution
c. free radical substitution
D. electrophilic addition
| 1 |
Chemistry
|
Net reaction taking place when amalgam is in contact with Al foil:
A \( \cdot 2 H_{2} O+O_{2} \rightarrow 2 H_{2} O \)
B. \( 4 A l+3 O_{2}+12 H^{\oplus} \rightarrow 4 A l^{3+}+6 H_{2} O \)
c. \( A l+O_{2}+\stackrel{\delta}{O} \rightarrow\left[A l(O H)_{4}\right]^{\ominus}+H_{2} O \)
D. \( 4 A l+3 O_{2} \rightarrow 2 A l_{2} O_{3} \)
| 1 |
Chemistry
|
\( \mathbf{f} \mathbf{\Delta}=\left|\begin{array}{lll}\mathbf{5} & \mathbf{3} & \mathbf{8} \\ \mathbf{2} & \mathbf{0} & \mathbf{1} \\ \mathbf{1} & \mathbf{2} & \mathbf{3}\end{array}\right|, \) write the minor of the
element \( a_{23} \)
| 2 |
Maths
|
Amongst the following statements, that
which was not proposed by Dalton was:
A. chemical reactions involve reorganizations of atoms. These are neither created nor destroyed in a chemical reaction.
B. when gases combine or reproduced in a chemical reaction they do so in a simple ratio by volume provided all gases are at the same \( T \) and \( P \)
C. All the atoms of a given element have identical properties including identical mass. Atoms of different elements differ in mass.
D. matter consists of indivisible atoms
| 1 |
Chemistry
|
Electrolyte \( \quad \wedge^{\infty}\left(S c m^{2} m o l^{-1}\right) \)
\( K C l \quad 149.9 \)
\( K N O_{3} \)
145.0
\( H C l \quad 426.2 \)
\( N a O A c \quad 91.0 \)
\( N a C l \quad 126.5 \)
Calculate \( \Lambda^{\infty}_{H O A c} \) using appropriate
molar conductances of the electrolytes
listed above at infinite dilution with \( H_{2} O \)
at \( 25^{\circ} \mathrm{C} ? \)
A. 217. 5 \( \operatorname{Scm}^{2} \) mol \( ^{-1} \)
В. 390.7 \( S c m^{2} \) mol \( ^{-1} \)
c. \( 552.7 \mathrm{Scm}^{2} \mathrm{mol}^{-1} \)
D. 517.2 \( S c m^{2} m o l^{-1} \)
| 1 |
Chemistry
|
Express the following in scientific notation:
(i) \( 0.0024, \) (ii) 600.0
| 1 |
Chemistry
|
Which statement about noble gases is
not correct:
\( \mathbf{A} \cdot \) Xe forms \( X e F_{6} \)
B. Ar is used in electric bulbs
C. \( K r \) is obtained during radioactive disintegration.
D. He has the lowest b.pt among all the noble
gases
| 1 |
Chemistry
|
The nuclide which disintegrates by
emitting a \( \beta \) - particle to form \( _{7}^{14} \) N contains:
A. 8 neutrons
B. 10 neutrons
c. 7 neutrons
D. 6 neutrons
| 3 |
Physics
|
\( ?+\boldsymbol{H}_{2} \boldsymbol{S} \boldsymbol{O}_{4} \rightarrow \boldsymbol{C} \boldsymbol{u} \boldsymbol{S} \boldsymbol{O}_{4}+\boldsymbol{H}_{2} \boldsymbol{O} \)
A \( \cdot \) CuSO \( _{4} \)
в. \( C u C l_{2} \)
c. \( C u \)
D. \( C u O \)
| 1 |
Chemistry
|
Which of the following properties of a solution of \( N a C l \) will not vary as the concentration of salt is increased?
A \( . p H \)
B. Density
c. Refractive index
D. Electrical conductivity
| 1 |
Chemistry
|
\( P \) is a point on the X-axis.lt is equidistant from the points (2,6) and \( (-4,0) . \) The co-ordinates of \( P \) are
A. \( P(-2,0) \)
в. \( P(2,0) \)
c. \( P(-6,0) \)
D. \( P(6,0) \)
| 2 |
Maths
|
Which compound in each of the
following pairs would have the higher boiling point ? Explain your answers.
\( \boldsymbol{C H}_{3} \boldsymbol{C H}_{2} \boldsymbol{C H}_{2} \boldsymbol{O H} \boldsymbol{o r} \boldsymbol{C H}_{3} \boldsymbol{C H}_{2} \boldsymbol{O C H}_{3} \)
\( \boldsymbol{C} \boldsymbol{H}_{3} \boldsymbol{C} \boldsymbol{H}_{2} \boldsymbol{C} \boldsymbol{H}_{2} \boldsymbol{O} \boldsymbol{H} \) or \( \boldsymbol{H} \boldsymbol{O C H}_{2} \boldsymbol{C H}_{2} \boldsymbol{O} \boldsymbol{H} \)
(c)
(d)
\( (e) \)
\( (\mathrm{g}) \)
(h) Hexane \( \mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{4} \mathrm{CH}_{3} \) or nonane \( \mathrm{CH}_{3}\left(\mathrm{CH}_{2}\right)_{7} \mathrm{CH}_{3} \)
\( (\mathbf{i}) \)
| 1 |
Chemistry
|
It is essential for venous blood while
travelling from kidneys towards heart to pass through
A. Iliac vein
B. Inferior vena cava
c. Liver
D. Hepatic vein
E. Pulmonary vein
| 0 |
Biology
|
In the adjoining figure, \( A B C \) is
triangle in which \( A D \) is the bisector of
\( \angle A . \) If \( A D \perp B C, \) show that \( \Delta A B C \)
is isosceles.
| 2 |
Maths
|
Number of Partial Fractions of \( \frac{3 x^{2}+1}{\left(x^{2}+1\right)^{4}} \)
A .4
B. 3
\( c \cdot 2 \)
D.
| 2 |
Maths
|
How many of the given plants show phyllotaxy, where single leaf arises at each node?
Alstonia, Brassica, Calotropis, Chilli, Chinarose Guava, Datura, Sunflower
A. Three
B. Five
c. Four
D. Six
| 0 |
Biology
|
Blood glands of Pheretima occur in
segments
\( A \cdot 1,2 \) and 3
B. 3,4 and 5
\( c \cdot 4,5 \) and 6
D. 10, 11 and 12
| 0 |
Biology
|
Agarose is a polymer of:
A. glucose
B. agarobiose
c. polyacrylamide
D. bisacrylamide
| 1 |
Chemistry
|
In respiration, pyruvic acid is
A. Formed only when oxygen is available
B. One of the products of Krebs cycle
C. Broken down into two carbon fragments and \( \mathrm{CO}_{2} \)
D. A result of protein breakdown
| 0 |
Biology
|
State whether the following statement is true or false.
\( \frac{\cos A-\sin A+1}{\cos A+\sin A-1}=\operatorname{cosec} A+\cot A \)
(by using the identity \( \operatorname{cosec}^{2} \boldsymbol{A}=1+ \)
\( \left.\cot ^{2} A .\right) \)
A . True
B. False
| 2 |
Maths
|
What is meant by wattless component
of the current?
| 3 |
Physics
|
A uniform disc of mass \( m \) and radius \( R \)
is pivoted at the point \( P \) and is free to
rotate in a vertical plane. The center \( C \) of the disc is initially in a horizontal position with \( P \) as shown in the figure.
It is released from this position, then its
angular acceleration when the line \( \boldsymbol{P C} \)
is inclined to the horizontal at an angle
\( \theta \) is:
A \( \cdot \frac{2 g \cos \theta}{3 R} \)
B. \( \frac{g \sin \theta}{2 R} \)
c. \( \frac{2 g \sin \theta}{R} \)
D. \( \frac{2 g \sin \theta}{3 R} \)
| 3 |
Physics
|
\( A \) and \( B \) are two points with position vectors \( 2 \vec{a}-3 \vec{b} \) and \( 6 \vec{b}-\vec{a} \)
respectively. Write the position vector of a point P which divides the line
segment AB internally in the ratio 1: 2
| 2 |
Maths
|
Find the value of the unknown exterior
angle \( x \) in the following diagrams.
| 2 |
Maths
|
The B-H curve for a ferromagnet is
shown in the figure. The ferromagnet is placed inside a ling solenoid with 1000
turns/cm.. The current that should be passed in the solenoid to demagnetise
the ferromagnet completely is:
\( A \cdot 2 m A \)
В. \( 1 m A \)
\( c .3 m A \)
D. None of these
| 3 |
Physics
|
The boiling point of amines are higher than that of hydrocarbon because:
A. they form inter molecular H-bonds
B. they are polar
c. they form ionic bonds
D. both A and
| 1 |
Chemistry
|
If \( A \) and \( B \) are non-empty sets such that
\( A \supset B, \) then
\( \mathbf{A} \cdot B^{\prime}-A^{\prime}=A-B \)
B \( \cdot B^{\prime}-A^{\prime}=B-A \)
\( \mathbf{C} \cdot A^{\prime}-B^{\prime}=A-B \)
D \( \cdot A^{\prime} \cap B^{\prime}=B-A \)
E \( \cdot A^{\prime} \cup B^{\prime}=A^{\prime}-B^{\prime} \)
| 2 |
Maths
|
Which of the following electronic configuration represents a highly electropositive element?
A \( \cdot[H e] 2 s \)
B \( \cdot[X e] 6 s^{1} \)
\( \mathbf{C} \cdot[H e] 2 s^{2} \)
D \( \cdot[X e] 2 s^{2} \)
| 1 |
Chemistry
|
Which one of the following reactions is an example of oxidative decarboxylation?
A. Conversion of succinate to fumarate.
B. Conversion of fumarate to malate
C. Conversion of pyruvate to acetyl Co-A
D. Conversion of citrate to isocitrate
| 0 |
Biology
|
If \( \sqrt{x}+\sqrt{y}=4, \) then find \( \frac{d x}{d y} \) at \( y=1 \)
A . 3
B. 4
\( c \cdot-3 \)
D. -
| 2 |
Maths
|
When sound waves travel from one
medium to another, which of the
following physical quantities does NOT alter?
A. Amplitude
B. Velocity
c. Frequency
D. Intensity
| 3 |
Physics
|
Fill in the blanks:
The IUPAC name of the compound
\( \boldsymbol{H} \boldsymbol{C} \equiv \boldsymbol{C}-\boldsymbol{C H}_{2}-\boldsymbol{C H}_{2}-\boldsymbol{C H}_{3} \)
is
| 1 |
Chemistry
|
blo
Q Type your question
will be: [Stress is proportional to square
of the Strain for the elastic tissue of the
aorta].
\( A \)
в.
\( c \)
\( D \)
| 3 |
Physics
|
Identify Bronsted-Lowry acids in the reaction given below? \( \left[\begin{array}{c}\left.\boldsymbol{A l}\left(\boldsymbol{H}_{2} \boldsymbol{O}\right)_{6}\right]^{3+}+\boldsymbol{H} \boldsymbol{C O}_{3}^{-} \rightleftharpoons\end{array}\right. \)
\( \left[A l\left(H_{2} O\right)_{S}(O H)\right]^{2+}+H_{2} C O_{3} \)
The correct answer is:
\( A \cdot A, C \)
B. A, D
c. в, D
D. B, c
| 1 |
Chemistry
|
A point on the parabola \( y^{2}=18 x \) at
which the ordinate increase at twice the
rate of the abscissa is
\( \mathbf{A} \cdot(9 / 8,9 / 2) \)
в. (2,-4)
c. \( (-9 / 8,9 / 2) \)
D. (2,4)
| 2 |
Maths
|
Find the common ratio of GP whose first
term is \( 3, \) the last is 3072 and the sum
of the series is 4095
A .2
B. 3
\( c \cdot 4 \)
D. 6
| 2 |
Maths
|
The radius of germanium (Ge) nuclide
is measured to be twice the radius of Be
the number of nucleons in Ge are
| 3 |
Physics
|
Evaluate: \( \int_{0}^{\pi / 2} \sin ^{3} x \cdot \cos ^{3} x d x \)
A \( \cdot \frac{1}{12} \)
в. \( \frac{\pi}{24} \)
c. \( \frac{\pi}{12} \)
D. \( \frac{1}{24} \)
| 2 |
Maths
|
Assertion
(A): Rigidity modulus of a liquid is infinity. Reason (R): For a ductile material yield point and breaking point are separated by larger distance than for brittle materials on the stress-starin curve.
A. Both assertion and reason are true and the reason is correct explanation of the assertion
B. Both assertion and reason are true, but reason is not correct explanation of the assertion
c. Assertion is true, but the reason is false
D. Assertion is false, but the reason is true
| 3 |
Physics
|
Calculate the pH of a \( 0.033 M \)
ammonia solution, if \( 0.033 M N H_{4} C l \) is introduced in this solution at the
same temperature. \( \left(k_{b} \text { for } N H_{3}=\right. \) \( \left.1.77 \times 10^{-5}\right) \)
| 1 |
Chemistry
|
\( \boldsymbol{p}(\boldsymbol{x})=\mathbf{2} \boldsymbol{x}^{3}-\mathbf{3} \boldsymbol{x}^{2}-\mathbf{5} \) is a
polynomial
A . linear
B. cubic
c. quadratic
D. constant
| 2 |
Maths
|
A mass of \( 1 k g \) is thrown up with velocity of \( 1000 m / s . \) After 5 second, it explodes
into two parts. One part of mass 400 g
moves soen with a velocity \( 25 m / s \) calculate the velocity of other part just after the explosion \( \left(\boldsymbol{g}=\mathbf{1 0 m s}^{-\mathbf{2}}\right) \)
| 3 |
Physics
|
Mitosis
A. Leads to recombinant daughter cells
B. Is a reduction division
C. Leads to formation of parental type of daughter cells
D. Occurs in gametes
| 0 |
Biology
|
If the heart sound recording and ECG recordings are superimposed then the first heart sound would occur
A. At the P wave
B. Just after the P wave
c. Just before the QRS complex
D. Just after the QRS complex
| 0 |
Biology
|
What is \( \int_{0}^{1} \frac{\tan ^{-1} x}{1+x^{2}} d x \) equal to \( ? \)
A \( \cdot \frac{\pi}{4} \)
в.
c. \( \frac{\pi^{2}}{8} \)
D. \( \frac{\pi^{2}}{32} \)
| 2 |
Maths
|
A liquid of density \( 12 k g m^{-3} \) exerts a
pressure of \( 600 P a \) at a point inside a liquid. What is height of liquid column
above that point? \( \left(\boldsymbol{g}=\mathbf{1 0 m} \boldsymbol{s}^{-1}\right) \)
| 3 |
Physics
|
How does the electronic configuration of an atom relate to its position in the Modern Periodic Table?
| 1 |
Chemistry
|
Given a uniform electric field \( \overrightarrow{\boldsymbol{E}}=\mathbf{2} \times \)
\( 10^{3} \hat{i} \mathrm{N} / \mathrm{C} \). Find the flux of this field
through a square of side \( 20 \mathrm{cm}, \) whose plane is parallel to the \( y \) -z plane. What would be the flux through the same square, if the plane makes an angle of
\( 30^{\circ} \) with the \( x \) -axis?
| 3 |
Physics
|
If \( f(x)=\sin x-\cos x-a x+b \)
decreases for a where \( x \in R \) then?
This question has multiple correct options
\( \mathbf{A} \cdot a<1 \)
B. \( a>1 \)
c. \( a<\sqrt{2} \)
D. \( a>\sqrt{2} \)
| 2 |
Maths
|
\( \mathbf{A}=\left[\begin{array}{cc}\cos \alpha & \sin \alpha \\ -\sin \alpha & \cos \alpha\end{array}\right] \) then \( \mathbf{A} . \mathbf{A}^{\mathbf{T}} \)
A. Null matrix
в. А
\( c \cdot I \)
D. A
| 2 |
Maths
|
What are haustoria?
| 0 |
Biology
|
The flowing water of a river possesses
energy.
A. gravitational
B. potential
c. electrical
D. kinetic
| 3 |
Physics
|
Complete the paragraph given below by filling in the blanks.
Blood flows twice in heart. In pulmonary circulation, the oxygenated blood is
carried to from
of heart through The oxygenated blood from lings is carried back to
of the heart through This oxygenated blood
from heart is carried to all systems
through and the deoxygenated blood from the systems below and above the heart is supplied to of
heart through
Hence it is
called double circulation.
| 0 |
Biology
|
Give reasons Genetic code is universal.
| 0 |
Biology
|
If \( \vec{A} \) is perpendicular to \( \vec{B}, \) then
\( \mathbf{A} \cdot \vec{A} \times \vec{B}=0 \)
B . \( \vec{A} \cdot[\vec{A}+\vec{B}]=A^{2} \)
c. \( \vec{A} \cdot \vec{B}=A B \)
D. \( \vec{A} \cdot[\vec{A}+\vec{B}]=A^{2}+A B \)
| 3 |
Physics
|
Four 2 ohm resistors are connected
together along the edges of a square. A 10V battery of negligible internal resistance is connected across a pair of
the diagonally opposite corners of the square. The power dissipated in the
circuit is
A. \( 100 \mathrm{w} \)
B. 50w
\( c .25 w \)
D. 20w
| 3 |
Physics
|
Which of the following laws of motion is (are) involved in the motion of the
rocket?
A. Newton's first law of motion.
B. Newton's second law of motion
c. Newton's third law of motion
D. All the above
| 3 |
Physics
|
The molar heat capacity of a monoatomic gas is:
A. \( 4 / 2 R \)
в. \( 3 / 2 R \)
c. \( 5 / 2 R \)
D. zero
| 1 |
Chemistry
|
How did the name 'hydrogen' originate?
| 1 |
Chemistry
|
Solids get heated by
A. conduction
B. convection
c. radiation
D. all the above
| 3 |
Physics
|
The list price of a video is \( \operatorname{Rs} 10,500 . \) If the rate of sales tax is \( 10 \% \), then the total amount for purchasing the video is
A . Rs 12,500
B. Rs 11,550
c. Rs 11,000
D. Rs 12,000
| 2 |
Maths
|
During "inelastic collision "
a) There is a loss of kinetic energy.
b) Some of the kinetic energy is used to
deform the body.
c) Some of the kinetic energy is
liberated as heat.
d) There is a loss of mass energy.
A. Only a is true
B. Only b and c are true
\( c \cdot a, b \& c \) are true
D. b, c \& d are true
| 3 |
Physics
|
Listed below are four respiratory capacities (a -d) and four jumbled respiratory volumes of a normal human
adult
Respiratory capacities Respiratory volumes
(a) Residual volume 2500 mL
(b) Vital capacity \( 3500 \mathrm{mL} \)
(c) Inspiratory reserve volume 1200
\( \mathrm{mL} \)
(d) Inspiratory capacity 4500
\( \mathrm{mL} \)
Which one of the following is the correct matching of two capacities and volumes?
A \( . \) (a)4500 \( \mathrm{mL} \) (b)3500 \( \mathrm{mL} \)
B. (b)2500 \( \mathrm{mL} \) (с) 4500 \( \mathrm{mL} \)
c. \( (c) 1200 \mathrm{mL} \) (d)2500 \( \mathrm{mL} \)
D. (d) 3500mL (a)1200 \( m L \) L
| 0 |
Biology
|
Which of the following is/are true for reversible process? This question has multiple correct options
A . It is a quasi-static process.
B. Both the system and surrounding will return to their original state
c. only the system will return to their original state.
D. It is a very fast process.
| 3 |
Physics
|
The sum of the magnitude of two forces at a point is \( 16 \mathrm{N} \). If their resultant is
normal to the smaller force and has a
magnitude of 8 N. Then two forces are
A. 6 N, 10 N
B. 8 N, 8 N
c. 4 N, 12 \( N \)
D. 2 N, 14 N
| 3 |
Physics
|
If \( \boldsymbol{x}+\frac{\mathbf{1}}{\boldsymbol{x}}=\mathbf{7}, \) find \( \boldsymbol{x}^{\mathbf{3}}+\frac{\mathbf{1}}{\boldsymbol{x}^{\mathbf{3}}} \)
| 2 |
Maths
|
Calculate the maximum wavelength of Balmer series in the hydrogen spectrum. Calculate the corresponding wave number.
\( \boldsymbol{R}=\mathbf{1 . 0 9 7} \times \mathbf{1 0}^{\mathbf{7}} \boldsymbol{m}^{-\mathbf{1}} \)
| 3 |
Physics
|
Which of the following pair of
substances can react to produce \( \boldsymbol{H}_{2} \)
gas?
A. Hydrolith and water
B. Sodium and heavy water
c. \( \mathrm{Hg} \) and Boiling water
D. Iron and conc. sulphuric acid
| 1 |
Chemistry
|
Is it a closed curve?
| 2 |
Maths
|
\[
\begin{array}{l}
2 x-5 y=8 \\
4 x+k y=17
\end{array}
\]
For which of the following values of \( k \)
will the system of equations above have no solution?
A . -10
в. -5
c. 0
D. 5
E . 10
| 2 |
Maths
|
A buffer solution with \( p H=9 \) is to be
prepared by mixing \( N H_{4} C l \) and
\( N H_{4} O H . \) Calculate the number of
moles of \( N H_{4} C l \) that should be added
to 1 liter of
\( \mathbf{1} \boldsymbol{M} \boldsymbol{N} \boldsymbol{H}_{\mathbf{4}} \boldsymbol{O} \boldsymbol{H} \cdot \boldsymbol{K}_{\boldsymbol{b}}\left(\boldsymbol{N} \boldsymbol{H}_{4} \boldsymbol{O} \boldsymbol{H}\right)=\mathbf{1 . 8} \times \)
\( 10^{-5} \)
| 1 |
Chemistry
|
When formaldehyde is heated with phenol in the presence of an alkali, the product formed is:
A . rubber
B. bakelite
c. chloroprene
D. neoprene
| 1 |
Chemistry
|
A ray of light is incident on a plane
mirror and the angle of reflection is \( 50^{\circ} \)
Calculate the angle between the incident ray and the reflected ray.
A \( .50^{\circ} \)
B . \( 25^{\circ} \)
\( c \cdot 90^{\circ} \)
D. \( 100^{\circ} \)
| 3 |
Physics
|
When the same amount of zinc is
treated separately with excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is
A . 1: 1
B. 1: 2
c. 2: 1
D. 9: 4
| 1 |
Chemistry
|
The equivalent resistance across AB is:
A . \( 1 \Omega \)
3. 2 ?
\( c .3 \Omega \)
D. \( 4 \Omega \)
| 3 |
Physics
|
Give reasons as to why equal masses of different substances have different
volumes.
A. because they have different shapes
B. because they have different densities
c. because they have the same densities
D. none of these
| 3 |
Physics
|
The outer length, breadth and height of
a wooden box open at the top are \( 10 \mathrm{cm} \) \( 8 \mathrm{cm} \) and \( 5 \mathrm{cm} \) respectively. If the thickness of the wood is \( 1 \mathrm{cm} \), the total surface area of the box is
A \( \cdot 420 \mathrm{cm}^{2} \)
В. \( 452 \mathrm{cm}^{2} \)
\( \mathrm{c} \cdot 451 \mathrm{cm}^{2} \)
D. \( 483 \mathrm{cm}^{2} \)
| 2 |
Maths
|
Assertion
Kinematic equations are exact and are always correct.
Reason
The definitions of instantaneous
velocity and acceleration are true only for motion in which the magnitude and
direction of acceleration are constant
during the course of motion
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
|
If \( z=2-3 i, \) then show that \( z^{2}-4 z+ \)
\( 13=0 . \) Hence find the value of \( 4 z^{3}- \)
\( \mathbf{3} z^{2}+\mathbf{2} z+\mathbf{1 7 0} \)
| 2 |
Maths
|
\( C O_{2} \) is transported as
A. Dissolved in blood plasma
B. Carbonic acid
C. Carbaminohaemoglobin
D. Carbaminohaemoglobin, carbonic acid and dissolved in plasma
| 0 |
Biology
|
On shaking \( \boldsymbol{H}_{2} \boldsymbol{O}_{2} \) with acidified
potassium dichromate and ether, ethereal layer becomes:
A. green
B. red
c. blue
D. brown
| 1 |
Chemistry
|
Catalytic activity of transition metals depends on:
A. their ability to exist in different oxidation states
B. the size of the metal atoms
c. the number of empty atomic orbitals available
D. none of these
| 1 |
Chemistry
|
The process described above in the
passage is regarding:
A. Ore dressing
B. Pyrometallurgical extraction
c. Hydrometallurgical extraction
D. Purification of metal.
| 1 |
Chemistry
|
\( (I E)_{1} \) of Be is greater than that of B but
\( (I E)_{2} \) of \( (B) \) is greater than that of Be.If
true enter 1 , else 0 .
| 1 |
Chemistry
|
The valves which allow blood to flow
from the ventricles into the arteries and
not in the opposite direction are
A. Bicuspid and tricuspid valves
B. AV valve (atrio ventricular valve) and semilunar valve
c. Aortic valve and mitral valve
D. Semilunar valve
| 0 |
Biology
|
The resistance of the network between
the terminals \( A \) and \( B \) is
\( A \cdot 30 \Omega \)
B. 20\Omega
\( c .50 \Omega \)
D. \( 60 \Omega \)
| 3 |
Physics
|
Stretching of a rubber band results in
A. No change in potential energy
B. Zero value of potential energy
C. Increase in potential energy
D. Decrease in potential energy
| 3 |
Physics
|
Which among the following is not a
property of mass?
A. It is the amount of matter contained in a body.
B. It is measured by a physical balance.
C. It varies as per the location.
D. Its S.I unit is kilogram.
| 3 |
Physics
|
Four identical rods each of mass \( M \) are
joined to form as square frame, the moment of inertia of the system about one of the diagonals is
A. \( \frac{13 M l^{2}}{3} \)
в. \( \frac{2 M l^{2}}{3} \)
c. \( \frac{M l^{2}}{6} \)
D. \( \frac{13 M l^{2}}{6} \)
| 3 |
Physics
|
In the laboratory prepration of hydrogen, pure zinc is not used because:
A. pure zinc becomes passive due to formation of oxide layer
B. pure zinc becomes passive due to the formation of sulphate layer over the metal
C. pure zinc reacts slowly with the acid
D. pure zinc reacts with acid vigorously and violently
| 1 |
Chemistry
|
Find the number, one third of which is 4
more than 5
A .27
B . 23
c. 25
D. 29
| 2 |
Maths
|
In which of the following cases, does the reaction go furthest to completion?
A \( \cdot K=10^{3} \)
B. \( K=10^{-2} \)
c. \( K=10^{5} \)
D. \( K=1 \)
| 1 |
Chemistry
|
A and B are two points on the axis and
the perpendicular bisector, respectively
of an electric dipole. A and B are far
away from the dipole and at equal
distances from it. The fields at \( A \) and \( B \)
\( \operatorname{are} \vec{E}_{A} \) and \( \vec{E}_{B} . \) Then:
\( \mathbf{A} \cdot \vec{E}_{A}=\vec{E}_{B} \)
B \( \cdot \vec{E}_{A}=2 \vec{E}_{B} \)
\( \mathbf{c} \cdot \vec{E}_{A}=-2 \vec{E}_{B} \)
D \( \cdot\left|\vec{E}_{B}\right|=\frac{1}{2}\left|\vec{E}_{A}\right| \), and \( \left|\vec{E}_{A}\right| \) is perpendicular to \( \vec{E}_{B} \)
| 3 |
Physics
|
If \( 8^{t h} \) term of an A.P is 15 , then the sum
of 15 terms is
A . 15
B. 0
c. 225
D. \( \frac{225}{2} \)
| 2 |
Maths
|
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