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A particle of mass \( 10 \mathrm{gm} \) is placed in a potential field given by \( V=\left(50 x^{2}+\right. \)
100) \( J / k g . \) The frequency of oscillation
in cycles/sec is:
A \( \cdot \frac{10}{\pi} \)
в. \( \frac{5}{\pi} \)
c. \( \frac{100}{\pi} \)
D. \( \frac{50}{\pi} \)
| 3 |
Physics
|
Assertion
The relative among \( u, v \) and \( f \) for the
spherical mirror is valid only for mirrors whose sizes are very small compared to their radii of curvature.
Reason
The laws of reflection are strictly valid
for plane surfaces but not for large
spherical surfaces.
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
|
Two masses are balanced on the scale
pictured above. If the bar connecting the two masses is horizontal and massless,
what is the weight of mass \( m \) in terms of M?
| 3 |
Physics
|
If arranged order in ascending which number is in second place?
1234.456,5623.564,2563.965,9856.36
A. 1234.456
B . 5623.564
c. 2563.965
D. 9856.365
| 2 |
Maths
|
The incorrect statement(s) is/are:
A. \( M g \) cannot form complexes
B. \( B e \) can form complexes due to a very small atomic
\( \operatorname{size} \)
C. The first ionisation potential of \( B e \) is higher than that of \( M g \)
D. \( M g \) forms an alkaline hydroxide while \( B e \) forms amphoteric oxides
| 1 |
Chemistry
|
Oxidation state of Mg in chlorophyll is:
\( A \cdot+2 \)
B. +6
\( c \cdot+3 \)
\( D \cdot+4 \)
| 1 |
Chemistry
|
The area bounded by the parabola \( y^{2}= \)
\( 4 x \) and the line \( y=2 x-4 \)
A. 9 sq. units
B. 5 sq. units
c. 4 sq. units
D. 2 sq. units
| 2 |
Maths
|
Prove that parallelograms are on the
same base and between the same
parallel lines are equal in area.
| 2 |
Maths
|
Very fine particles mainly scatter coloured light.
A . Red
B. Blue
c. Green
D. Yellow
| 3 |
Physics
|
Which of the following methods is used for obtaining metals of very high purity?
A. Distillation
B. zone refiningg
c. Liquation
D. Electrolytic refining
| 1 |
Chemistry
|
At a depth of \( 1000 \mathrm{m} \) in an ocean, what is the absolute pressure? Given density of sea water is \( 1.03 \times 10^{3} k g m^{-3}, g= \)
\( 10 m s^{-2} \)
A. 104 atm
B. 100 atm
c. 108 atm
D. 110 atm
| 3 |
Physics
|
Simplify:
\( \boldsymbol{x}^{\boldsymbol{6}}+\boldsymbol{6} \boldsymbol{x}^{\boldsymbol{3}}+\boldsymbol{8} \)
| 2 |
Maths
|
A person standing on a train platform listening to the whistle frequency of \( 450 H z \) of the train as it approaches her at a constant speed. As the train approaches the person on the platform, she will hear the frequency (pitch) of the whistle as:
A. Greater than \( 450 H z \) but constant
B. Less than \( 450 H z \) but constant
c. Greater than \( 450 H z \) and steadily increasing
D. Less than \( 450 H z \) and steadily increasing
E. Greater than \( 450 \mathrm{Hz} \) and steadily decreasing
| 3 |
Physics
|
If sides of a triangle are \( 5,6, \) and \( 10, \) and the length of the median of biggest side id \( m, \) then find \( 100 m \)
| 2 |
Maths
|
What is the proper name of the
compound above?
A. 1 -phenoxyethane
B. m-butylhydroxybenzene
C. o-butylhydroxybenzene
D. m-butylphenol
| 1 |
Chemistry
|
Which of the following gases is adsorbed to maximum extent on the
given surface?
A \( . N H_{3} \)
в. \( H_{2} \)
\( c \cdot N_{2} \)
D. \( O_{2} \)
| 1 |
Chemistry
|
Reduction process of \( C O_{2} \) and ATP formation in plants has relationship. In this rection, ATP is
A. Formed
B. Utilised
c. Not utilised
D. None of the above
| 0 |
Biology
|
Find the value of \( \left(1^{3}+2^{3}+3^{3}\right)^{\frac{1}{2}} \)
| 2 |
Maths
|
Determine the \( p H \) of a \( 0.2 M \) solution of
pyridine \( C_{5} H_{5} N \)
[For pyridine \( : \boldsymbol{K}_{\boldsymbol{b}}=\mathbf{1 . 5} \times \mathbf{1 0}^{-\mathbf{9}} \mathbf{]} \)
\( \mathbf{A} \cdot p H=4.76 \)
в. \( p H=8.43 \)
c. \( p H=9.24 \)
D. \( p H=11.73 \)
| 1 |
Chemistry
|
If \( f^{\prime}(3)=2 \) then
\( \lim _{h \rightarrow 0} \frac{f\left(3+h^{2}\right)-f\left(3-h^{2}\right)}{2 h^{2}} \) is
\( A \)
B. 2
c. 37
\( D \cdot \frac{1}{1} \)
| 2 |
Maths
|
(i) Name the transformer used in the
power transmitting station of a power plant.
(ii) What type of current is transmitted
from the power station?
(iii) At what voltage is this current available to our household?
| 3 |
Physics
|
In cation exchange resin, the cations of
hard water get replaced by \( \boldsymbol{K}^{+} \) ions. If this is true enter 1 , if false enter 0 .
| 1 |
Chemistry
|
Let \( \boldsymbol{E}_{a} \) be the electric field due to a
dipole in its axial plane distant \( \ell \) and \( \boldsymbol{E}_{\boldsymbol{q}} \) be the field in the equatorial plane distant \( l^{1}, \) then the relation between \( E_{a} \)
and \( \boldsymbol{E}_{\boldsymbol{q}} \) will be :
\( \mathbf{A} \cdot E_{a}=4 E_{q} \)
В . \( E_{q}=2 E_{a} \)
\( \mathbf{c} \cdot E_{a}=2 E_{q} \)
D. \( E_{q}=3 E_{a} \)
| 3 |
Physics
|
Find number of negative integral
solution of equation \( \boldsymbol{x}+\boldsymbol{y}+\boldsymbol{z}=-\mathbf{1 2} \)
| 2 |
Maths
|
The number of positive integers
satisfying the inequality
\[
n+1 C_{n-2}-^{n+1} C_{n-1} \leq 100 \text { is }
\]
A. One
B. Eight
c. Five
D. None of these
| 2 |
Maths
|
When two surfaces are polished, the friction coefficient between them
decreases. But the friction coefficient
increases and becomes very large if the
surfaces are made highly smooth.
Explain.
| 3 |
Physics
|
In a multistep reaction, the overall rate of reaction is equal to the :
A. Rate of slowest step
B. Rate of fastest step
c. Average rate of various step
D. The rate of last step
| 1 |
Chemistry
|
The equation of the plane passing through the intersection of the planes \( \boldsymbol{x}+\boldsymbol{y}+\boldsymbol{z}=\boldsymbol{6} \) and \( \boldsymbol{2} \boldsymbol{x}+\boldsymbol{3} \boldsymbol{y}+\boldsymbol{4} \boldsymbol{z}+\boldsymbol{5}= \)
\( 0, \) and the point (1,1,1) is
A. \( 20 x+23 y+26 z-69=0 \)
B. \( 20 x+23 y+26 z+69=0 \)
c. \( 23 x+20 y+26 z-69=0 \)
D. None of these
| 2 |
Maths
|
Pea plants were more suitable than cattle for Mendel's experiment because
A. There were no breeding records of cattles
B. Pea plants can be self-fertilised
c. cattle are not easy to mantain
D. All pea plants have 2n chromosomes and fewer genetic traits.
| 0 |
Biology
|
An equilibrium mixture in a vessel of
capacity 100 litre contain 1 mol \( N_{2}, 2 \) mol
\( O_{2} \) and 3 mol \( N O . \) Number of moles of
\( O_{2} \) to be added so that at new
equilibrium the conc. of \( N O \) is found to be 0.04 mol/lit is:
A . \( 101 / 18 \)
в. \( 101 / 9 \)
c. \( 202 / 9 \)
D. none of these
| 1 |
Chemistry
|
\( \ln \) an \( A . C . \) circuit a capacitor of \( 1 \mu F \)
value is connected to a source of
frequency 1000 rad/sec. The value of capacitive reactance will be
A . \( 10 \Omega \)
в. 100\Omega
c. \( 1000 \Omega \)
D. \( 10,000 \Omega \)
| 3 |
Physics
|
Correct mirror formula is:
A \( \cdot \frac{1}{v}-\frac{1}{u}=\frac{1}{f} \)
в. \( \frac{1}{v}+\frac{1}{u}=\frac{1}{f} \)
c. \( \frac{1}{v}-\frac{1}{u}=\frac{1}{-f} \)
D. \( \frac{1}{v}+\frac{1}{u}=\frac{1}{-f} \)
| 3 |
Physics
|
\( A B \) and \( C D \) are two parallel chords of a circle such that \( A B=10 \mathrm{cm} \) and \( \mathrm{CD}=24 \)
\( \mathrm{cm}, \) If the chords are on the opposite sides of the centre and the distance
between them is \( 17 \mathrm{cm} \), the radius of the circle is:
A . \( 14 \mathrm{cm} \)
B. 10 \( \mathrm{cm} \)
\( c \cdot 13 \mathrm{cm} \)
D. \( 15 \mathrm{cm} \)
| 2 |
Maths
|
Which one of the transition metal ions
have no unpaired electrons?
\( \mathbf{A} \cdot \mathbf{T}_{\mathbf{i}^{+}} \)
B. \( v^{+4} \)
\( c \cdot v^{+3} \)
\( D \cdot c r^{3} \)
| 1 |
Chemistry
|
A hollow metal sphere of radius \( 10 \mathrm{cm} \) is
charged such that the potential on its surface becomes \( 80 \mathrm{V} \). The potential at the centre of the sphere is?
A . \( 80 v \)
в. 800 V
c. \( 8 v \)
D. zero
| 3 |
Physics
|
An object \( 15 \mathrm{cm} \) high is placed \( 10 \mathrm{cm} \) from the optical center of a thin lens. Its
image is formed \( 25 \mathrm{cm} \) from the optical
center on the same side of the lens as
the object. The height of the image is:
\( \mathbf{A} \cdot 2.5 \mathrm{cm} \)
B. \( 0.2 \mathrm{cm} \)
\( c .16 .7 \mathrm{cm} \)
D. \( 37.5 \mathrm{cm} \)
| 3 |
Physics
|
ATP stands for
A. Adenosine triphosphate
B. Adenine diphosphate
C. Adenosine tetraphosphate
D. Adenine triphosphate
| 0 |
Biology
|
A ray of light incident normally on the
first face of a prism of refracting angle \( A \) and critical angle \( C . \) The ray emerges from the second face of the prism when the following condition satisfies:
A \( . C>A \)
в. \( C \)
c. \( C \geq A \)
D. \( C \leq A \)
| 3 |
Physics
|
Draw two tangents from a point \( 5 \mathrm{cm} \) away from the centre of a circle of
radius \( 3 \mathrm{cm} \)
| 2 |
Maths
|
A current of \( 1 /(4 \pi) \) ampere is flowing in
a long straight conductor. The line integral of magnetic induction around a closed path enclosing the current carrying conductor is
\( \mathbf{A} \cdot 10^{-7} W b m^{-1} \)
В . \( 4 \pi \times 10^{-7} \mathrm{Wb} \mathrm{m}^{-1} \)
c. \( 16 \pi^{2} 10^{-7} W b m^{-1} \)
D. zero
| 3 |
Physics
|
A straight wire of mass \( 200 g \) and length
\( 1.5 m \) carries a current of \( 2 A . \) It is
suspended in mid air by a uniform
horizontal magnetic field \( B \). The
magnitude of \( B \) (in tesla) is :
A . 0.65
в. 0.55
c. 0.75
D. 0.45
| 3 |
Physics
|
5
0
8
8
| 1 |
Chemistry
|
If the frequency and amplitude of a transverse wave on a string are both doubled, then the amount of energy
transmitted through the string is
A. doubled
B. become 4 time
c. becomes 16 times
D. becomes 32 times
| 3 |
Physics
|
The light which refracts most while
passing through a prism is
A . Red
B. Violet
c. Indigo
D. Yellow
| 3 |
Physics
|
What is the reagent used in Etard
reaction?
A. Chromyl chloride
B. Ethanoyl chloride
c. \( S n C l_{2} \) and \( H C l \)
D. Cadmium chloride
| 1 |
Chemistry
|
\( A / c \) to ohm's law, \( \frac{V}{I}= \) constant, This constant is known as
A. voltage
B. Current
c. Power
D. Resistance
| 3 |
Physics
|
The line \( 4 y-3 x+\lambda=0 \) touches the
circle \( x^{2}+y^{2}-4 x-8 y-5=0 . \) The
value of \( \lambda \) is
\( \mathbf{A} \cdot 29 \)
B . 10
c. -35
D. None of these
| 2 |
Maths
|
Which amoung the following has maximum boiling point?
A \( . C H_{3}-C H_{2}-\left(C H_{2}\right)-C H_{2} O H \)
B. \( C H_{3}-C H_{2}-C H_{2}-C_{\}^{C H}-C H_{3} \)
\( \mathbf{c} . C H_{3}-C H_{3}-C H-C H_{2}-C H_{3} \)
\( _{O H} \)
D.
\[
\begin{array}{l}C H_{3}-C_{3} \\ _{O H}^{-} C-C H_{2}-C H_{3}\end{array}
\]
OH
| 1 |
Chemistry
|
If surface tension (S), Moment of inertia
(I) and Planck's constant (h), were to be taken as the fundamental units, the
dimensional formula for linear
momentum would be :-
A \( \cdot S^{3 / 2} I^{1 / 2} h^{0} \)
B. \( S^{1 / 2} I^{1 / 2} h^{0} \)
c. \( S^{1 / 2} I^{1 / 2} h^{-1} \)
\( \mathbf{D} \cdot S^{1 / 2} I^{3 / 2} h^{-1} \)
| 3 |
Physics
|
Which is true for the far sightedness or hypermetropia from the following?
A. Eyelense does not became thin as per requirement
B. Distant object cannot be seen clearly
c. Nearby object cannot be seen clearly.
D. Defect can be corrected by using concave lens
| 3 |
Physics
|
Which of the following is not a part of
the ear?
A. humerus
B. cochlea
c. labyrinth
D. stapes
| 3 |
Physics
|
If one of the two slits of Young's doubleslit experiment is painted so that it transmits half the light intensity as the second slit, then
A. fringe system will altogether disappear
B. bright fringes will become brighter and the dark fringes will become darker
c. both dark and bright fringes will become darker
D. dark fringes will become less dark and bright fringes will become less bright
| 3 |
Physics
|
Echo is due to
A. reflection of sound
B. refraction of sound
c. both reflection and refraction of sound
D. diffraction of sound
| 3 |
Physics
|
'The charge on a body cannot be
\( \mathbf{A} \cdot e \)
B.
c. \( 1.5 e \)
D. all the above
| 3 |
Physics
|
Which hormone is produced by
placenta?
A . GH
B. Gastrin
c. АСТН
D. Progesterone
| 0 |
Biology
|
If the \( p H \) of a solution is \( 8, \) its \( \left[H^{+}\right] \) is:
A \( \cdot \log 10^{-8} \)
B . \( 10^{6} \)
\( c \cdot 10^{-8} \)
D. 8
| 1 |
Chemistry
|
The potential of neutral wire is:
A. ov
B. 300V
c. \( 220 v \)
D. 1000v
| 3 |
Physics
|
The elements in Group 17 of the Periodic Table are called the halogens. They form stable compounds with both metals and non-metals.
The table gives some data about
\[
F_{2}, H C l \text { and } C a F_{2}
\]
\( \boldsymbol{H C l} \) \( \boldsymbol{F}_{2} \)
Boiling point/ \( K \)
\( 85 \quad 188 \)
relative form 38.0 36.5 mass
Explain why \( C a F_{2} \) has a very high boiling point.
| 1 |
Chemistry
|
In an organic compound, phosphorus is estimated
as
A. \( M g_{2} P_{2} O_{7} \)
в. \( H_{3} P O_{4} \)
c. \( M g_{3}\left(P O_{4}\right)_{2} \)
D. \( P_{2} O_{5} \)
| 1 |
Chemistry
|
A charged glass rod will get discharged
on
A. connecting it to the earth
B. connecting it to another glass rod
c. breaking the ends of the rod
D. Any of the above
| 3 |
Physics
|
In in nature there may not be an element for which the principal
quantum number \( n>4 \), then the total
possible number of elements will be
A . 60
B. 32
\( c \cdot 4 \)
\( D \cdot 64 \)
| 3 |
Physics
|
If \( A \) and \( B \) are symmetric matrices of the same order, write whether \( A B- \)
\( B A \) is symmetric or skew-symmetric or
neither of the two.
| 2 |
Maths
|
Which of the following medicines is used for abortion?
A. Mifepristone
B. Misoprostal
c. chloramphenicol
D. Both A and B
| 0 |
Biology
|
Draw a neat and labelled diagram of zone refining process.
| 1 |
Chemistry
|
Select the correct order of decreasing reactivity of the following compounds towards the attack of Grignard reagent.
(I)Methyl benzoate (II) Benzaldehyde
(III)Benzoyl chloride (IV)Acetophenone
\( \mathbf{A} \cdot\|>\| \backslash>|>| V \)
B. III >IV >|| > |
c. \( \||>||>| \vee>\mid \)
D. II >IV > > >III
| 1 |
Chemistry
|
Convection currents are possible in solids
A . True
B. False
| 3 |
Physics
|
Which of the following class of forces is different from others?
A. Magnetic force
B. Electrical force
c. Gravitational force
D. Stretching of a spring
| 3 |
Physics
|
Find the slope of the line with
inclination \( 60^{\circ} \)
| 2 |
Maths
|
Toluene \( \frac{K M n O_{4} / K O H / H_{3} O \oplus}{A .} \) What is
A?
A. Acetice acid
B. Benzene
C. Benzoic acid
D. Benzaldehyde
| 1 |
Chemistry
|
If \( x \) is real, \( x+\frac{1}{x} \neq 0 \) and \( x^{3}+\frac{1}{x^{3}}=0 \)
then the value of \( \left(\boldsymbol{x}+\frac{\mathbf{1}}{\boldsymbol{x}}\right)^{\mathbf{4}} \) is
\( \mathbf{A} \cdot \mathbf{4} \)
B. 9
c. 16
D. 25
| 2 |
Maths
|
Carnassial teeth, which are pointed molars, would most likely be part of the
dentition of a
A. human
B. cow
c. lion
D. hawk
| 0 |
Biology
|
Find the latus rectum of the parabola \( \boldsymbol{x}^{2}+\mathbf{2} \boldsymbol{y}-\mathbf{3} \boldsymbol{x}+\mathbf{5}=\mathbf{0} \)
\( \mathbf{A} \cdot \mathbf{1} \)
B . 2
\( c \cdot 4 \)
D.
| 2 |
Maths
|
A plastic ball falls from a height of 4.9 metre and rebounds several times from
the floor. What is the coefficient of
restitution during the impact with the floor if 1.3 seconds pass from the first impact to the second one?
A . 0.9
B. \( 0 . \)
\( c .0 .7 \)
D. 0.8
| 3 |
Physics
|
Let \( A \) and \( B \) be the remainders when the
polynomials \( y^{3}+2 y^{2}-5 a y-7 \) and
\( y^{3}+a y^{2}-12 y+6 \) are divided by \( y+ \)
1 and \( y-2 \) respectively. If \( 2 A+B=6 \)
find the value of \( a \)
| 2 |
Maths
|
Find vector of magnitude 9 equality
inclined to the coordinate axes?
| 2 |
Maths
|
\( \Delta G(H I: g) \equiv+1.7 \quad k J . \) What is the
equilibrium constant at \( 25^{\circ} C \) for
\( 2 H I(g) \rightleftharpoons H_{2}(g)+I_{2}(g) ? \)
A. 24.0
B. 3.9
c. 2.0
D. 0.5
| 1 |
Chemistry
|
Choose the correct answers from the
alternatives given If the sequence of bases in DNA is TAGC,
then the sequence of bases in RNA would be
A . AUCG
B. TAGC
c. АТСС
D. GCTA
| 0 |
Biology
|
In given figure \( A B \) is a line segment
and line \( l \) is its perpendicular bisector.
f a point \( P \) lies on \( l \), show that \( P \) is
equidistant from \( A \) and \( B \)
| 2 |
Maths
|
In beta decay, the typical Q value is approximately:
A \( .2 \mathrm{MeV} \)
B. 1 MeV
\( \mathrm{c} \cdot 1 \mathrm{eV} \)
D. \( 10 \mathrm{MeV} \)
| 3 |
Physics
|
Which of the following metal oxides is white in colour but becomes yellow on heating?
A. \( A g_{2} O \)
в. \( Z n O \)
c. \( F e O \)
D. \( M g O \)
| 1 |
Chemistry
|
Find the remainder when \( x^{3}+p x^{2}+ \)
\( \boldsymbol{q} \boldsymbol{x}+\boldsymbol{r} \) is divided by \( \boldsymbol{x}^{2}+\boldsymbol{p} \boldsymbol{x}+\boldsymbol{q} \)
| 2 |
Maths
|
\( \ln \) an ac circuit, the resistance of \( \mathrm{R} \Omega \) is connected in series with an inductance
I. If phase angle between voltage and
current be \( 45^{\circ}, \) the value of inductive
reactance will be:
A. \( R / 2 \)
B. \( R / \sqrt{2} \)
\( c . R \)
D. Insufficient data
| 3 |
Physics
|
Which of the following is not a proper fraction?
\( A \cdot \frac{2}{3} \)
B. \( _{4} \)
\( c \cdot \frac{5}{7} \)
D. \( \frac{6}{5} \)
| 2 |
Maths
|
A man standing in a lift falling under gravity releases a ball from his hand. As
seen by him, the ball:
A. Falls down
B. Remains stationary
c. Goes up
D. Executes SHM
| 3 |
Physics
|
Equanil is a/an:
A. tranqulizer
B. antifertility drug
c. artificial sweetner
D. antihistaamine
| 1 |
Chemistry
|
Charge \( Q \), is divided into two parts which are then kept some distance
apart. The force between them will be
maximum if the two parts are having the charge.
\( ^{\text {A }} \cdot \frac{Q}{2} \) each
в. \( \frac{Q}{4} \) and \( \frac{3 Q}{4} \)
c. \( \frac{Q}{3} \) and \( \frac{2 Q}{3} \)
D. \( e \) and \( (Q-e) \), where \( e= \) electronic charge
| 3 |
Physics
|
A body weighs \( 36 k g \) on the surface of the Earth. How much would it weights
on the surface of a planet,whose mass is \( \frac{1}{9} \) and radius \( \frac{1}{3} \) of that of earth?
| 3 |
Physics
|
The speed of the bicycle is
\( \begin{array}{ll}\text { A. } 6.4 \pi m & s^{-1}\end{array} \)
B. \( 3.5 \pi m \quad s^{-1} \)
\( \mathbf{c} \cdot 2.8 \pi m \quad s^{-1} \)
\( \begin{array}{ll}\text { D. } 5.6 \pi m & s^{-1}\end{array} \)
| 3 |
Physics
|
In which quadrant or on which axis each of the following points lies. Write abscissa and ordinate each of the
following:
(i) (3,-4)
(ii) (-3,5)
(iii) (-10,0)
(iv) (-2,-7)
| 2 |
Maths
|
Unit vector perpendicular to the plane passing through the points \( \hat{\mathbf{i}}-\hat{\mathbf{j}}+ \) \( 2 \hat{k}, 2 \hat{i}-\hat{k} \) and \( 2 \hat{j}+\hat{k} \) is
A \( \cdot \frac{2 \hat{i}-\hat{j}+\hat{k}}{\sqrt{6}} \)
\( ^{\text {В } \cdot \frac{2 \hat{i}+\hat{j}+\hat{k}}{\sqrt{6}}} \)
c. \( \frac{2 \hat{i}+\hat{j}-\hat{k}}{\sqrt{6}} \)
D. None of these
| 2 |
Maths
|
Subtract \( 24 a b-10 b-18 a \) from
\( 30 a b+12 b+14 a \)
| 2 |
Maths
|
Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?
\( A \). NADP
B. RuBP
c. Ferredoxin
D. cytochrome
| 0 |
Biology
|
Javed was given \( \frac{5}{7} \) of a basket of oranges.What fraction of oranges was
left in the basket?
| 2 |
Maths
|
Heat is not transferred by the process of convection in:
A. solid
B. liquid
c. gas
D. none of the above
| 3 |
Physics
|
Evaluate the given integral. \( \int e^{x} \frac{x-4}{(x-2)^{2}} d x \)
| 2 |
Maths
|
1 volt is equivalent to:
A \( \cdot \frac{\text { newton }}{\text { second }} \)
B. \( \frac{\text { newton }}{\text { coulomb }} \)
c. \( \frac{\text { joule }}{\text { coulomb }} \)
D. \( \frac{\text { joule }}{\text { second }} \)
| 3 |
Physics
|
Formation of \( \boldsymbol{O}^{-} \) is
whereas formation of \( \boldsymbol{O}^{-2} \) is
A. exothermic, endothermic
B. endothermic, exothermic
c. endothermic, endothermic
D. exothermic, exothermic
| 1 |
Chemistry
|
Conversion of sulphur to \( \boldsymbol{S O}_{3} \) has
\( \triangle H=2 x K c a l \) and conversion of \( S O_{2} \)
to \( S O_{3} \) involves \( \triangle H=-y k c a l \). The
correct thermochemical equation for
formation of \( \boldsymbol{S} \boldsymbol{O}_{2} \) is:
A \( . S+O_{2} \rightarrow S O_{2} \triangle H=(y-2 x) \)
B. \( S+O_{2} \rightarrow S O_{2} \triangle H=-(y-2 x) \)
c. \( S+O_{2} \rightarrow S O_{2} \triangle H=(x+y) \)
D. \( S+O_{2} \rightarrow S O_{2} \triangle H=2 y-3 x \)
| 1 |
Chemistry
|
Relation between hydrolysis constant and dissociation constant are given.
Which is the correct formula for \( M g C l_{2} \)
\( ? \)
A \( \cdot K_{h}=\frac{K_{w}}{K_{a}} \)
в. \( K_{h}=\frac{K_{w}}{K_{b}} \)
\( ^{\mathrm{c}} \cdot_{K_{h}}=\frac{K_{w}}{K_{a} \times K_{b}} \)
D. \( _{K_{w}}=\frac{K_{h}}{K_{b}} \)
| 1 |
Chemistry
|
In the periodic table, the metallic
character of element:
A. decreases from left to right across a period and on descending a group
B. decreases from left to right across a period and increases on descending a group
C. increases from left to tight across a period and on descending a group
D. increases from left to right across a period and decreases on descending a group
| 1 |
Chemistry
|
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