AkshitPareek2004/jee-question-analyzer-data huggingface dataset:
Subject: Biology
RQ (Respiratory Quotient) is defined as
A. Volume of \( \mathrm{CO}_{2} \) evolved \( = \)
volume of \( \mathrm{O}_{2} \) consumed
\begin{tabular}{llll} 
B. Volume of & O \( _{2} \) consumed \\
\cline { 2 - 3 } Volume of & \( \mathrm{CO}_{2} \) & evolved
\end{tabular}
\begin{tabular}{llll} 
C. Volume & of & C O \( _{2} \) evolved \\
\cline { 2 - 3 } Volume & of & \( \mathrm{O}_{2} \) & consumed
\end{tabular}
D. \( \frac{\text { Volume of } O_{2}}{\text { Volume of } C O_{2}} \) consumed
Subject: Chemistry
Assertion
The order of a reaction can have
fractional value.
Reason
The order of a reaction cannot be
written from balanced equation of a
reaction.
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
Subject: Chemistry
Calculate the standard enthalpy of
formation of \( \boldsymbol{C} \boldsymbol{H}_{3} \boldsymbol{O} \boldsymbol{H}(\boldsymbol{I}) \) from the
following data:
\( C H_{3} O H(I)+\frac{3}{2} O_{2}(g) \rightarrow C O_{2}(g)+ \)
\( 2 H_{2} O(l) ; \triangle_{r} H^{\theta}=-726 k J m p l^{-1} \)
\( \boldsymbol{C}_{ \text {graphite } )}+\boldsymbol{O}_{2}(\boldsymbol{g}) \rightarrow \boldsymbol{C} \boldsymbol{O}_{2}(\boldsymbol{g}) ; \triangle_{c} \boldsymbol{H}^{\boldsymbol{\theta}}= \)
\( -393 k J m o l^{-1} \)
\( \boldsymbol{H}_{2}(\boldsymbol{g})+\frac{\mathbf{1}}{\mathbf{2}} \boldsymbol{O}_{2}(\boldsymbol{g}) \rightarrow \boldsymbol{H}_{2} \boldsymbol{O}(l) ; \triangle_{f} \boldsymbol{H}^{\boldsymbol{\theta}}= \)
\( -286 k J m o l^{-1} \)
Subject: Chemistry
What will be the energy of one photon of radiation whose frequency is \( 5 \times \) \( 10^{14} H z ? \)
A. \( 199.51 J \)
в. \( 3.3 \times 10^{-19} \mathrm{J} \)
c. \( 6.626 \times 10^{-34} J \)
D. \( 2.31 \times 10^{5} J \)
Subject: Physics
The value of \( \frac{1}{\sqrt{\mu_{0} \varepsilon_{0}}} \)
A \( \cdot 3 \times 10^{6} m / s \)
В. \( 3 \times 10^{8} m / s \)
c. \( 3 \times 10^{4} m / s \)
D. 332m/s
Subject: Physics
A body of mass \( 60 k g \) has the
momentum \( 3000 k g m s^{-1} . \) Calculate the
speed of the body.
\( \mathbf{A} \cdot 5 m s^{-1} \)
B . \( 0.05 m s^{-1} \)
\( \mathrm{c} \cdot 50 \mathrm{ms}^{-1} \)
D. \( 500 m s^{-1} \)
Subject: Physics
\( \ln \) an a.c. circuit \( V \) and \( I \) are given by
\( \boldsymbol{V}=\mathbf{1 0 0} \sin (\mathbf{1 0 0} \boldsymbol{t}) \boldsymbol{v o l t s} \) and \( \boldsymbol{I}= \)
\( \mathbf{1 0 0} \sin (\mathbf{1 0 0} t+\boldsymbol{\pi} / \mathbf{3}) \boldsymbol{m} \boldsymbol{A} . \) The power
dissipated in the circuit is
A \( \cdot 10^{4} \) watt
B. 10 watt
c. 2.5 watt
D. 5.0 watt
Subject: Physics
A box of mass \( 8 k g \) is placed on a rough inclined plane of inclination \( \theta \). Its downward motion can be prevented by applying an upward pull \( F \) and it can be made to slide upwards by applying a force \( 2 F \)

The coefficient of friction between the
box and the inclined plane is
A \( \cdot \frac{1}{3} \tan \theta \)
B. \( 3 \tan \theta \)
c. \( \frac{1}{2} \tan \theta \)
D. \( 2 \tan \theta \)
Subject: Maths
Factorize \( : \boldsymbol{y}^{2}+\mathbf{1 0 0} \boldsymbol{y} \)
A. \( y(y+100) \)
B . \( y^{2}(y+100) \)
c. \( y\left(y^{2}+100\right) \)
D. none of these
Subject: Chemistry
The heat of reaction for \( \boldsymbol{A}+\frac{1}{2} \boldsymbol{O}_{2} \rightarrow \boldsymbol{A} \boldsymbol{O} \)
is -50 kcal/mol and \( A O+\frac{1}{2} O_{2} \rightarrow A O_{2} \)
is 100 kcal/mol
The heat of reaction (in kcal/mol) for
\( \boldsymbol{A}+\boldsymbol{O}_{2} \rightarrow \boldsymbol{A} \boldsymbol{O}_{2} \) will be:
A . -50
B. +50
c. +100
D. +150
Subject: Physics
A parallel plate capacitor (fig.) made of circular plates each of radius \( \boldsymbol{R}= \) \( 6.0 \mathrm{cm} \) has a capacitance \( C=100 \mu \mathrm{F} \)
The capacitor is connected to a \( 230 V \) ac supply with a (angular) frequency of 300 rad \( s^{-1} . \) What is the \( r m s \) value of
the conduction current?
Subject: Chemistry
\( 0.092 \mathrm{g} \) of an organic compound containing phosphorous gave 0.111 g of \( M g_{2} P_{2} O_{7} \) by usual analysis.
Calculate the percentage of the phosphorous in the organic compound.
A . \( 45.95 \% \) \%
B . \( 29.65 \% \)
c. \( 37.32 \% \)
D. 33.7\%
Subject: Physics
Consider the figure given. Each
capacitor has capacitance \( C . \) The
capacitance between 1 and 3 is :
\( A \cdot \frac{3 C}{4} \)
B. \( \frac{3 C}{2} \)
\( c \cdot \frac{5 C}{2} \)
D. \( \frac{50}{1} \)
Subject: Chemistry
Which of the following statements
is/are correct?
This question has multiple correct options
\( \mathbf{A} \cdot N H_{2}^{+} \) shows \( s p^{2}- \) hybridisation whereas \( N H_{2} \) shows \( s p^{3}- \) hybridisation
B. \( A l(O H)_{4}^{-} \) has a regular tetrahedral geometry
\( \mathrm{C} \cdot s p^{2}- \) hybridized orbitals have equal \( s- \) and \( p- \) character
D. Usually hybridized orbitals form \( \sigma \) bonds
Subject: Physics
A body moving at \( 2 \mathrm{m} / \mathrm{s} \) can be stopped over a distance \( x \). If its kinetic energy is
doubled, how long will it go before coming to rest, retarding force remains unchanged?
\( A \)
B . \( 2 x \)
c. \( 4 x \)
D. \( 8 x \)
Subject: Chemistry
The electronic configuration of bivalent europium and trivalent cerium are:
[Atomic number: \( \boldsymbol{X} \boldsymbol{e}=\mathbf{5 4}, \boldsymbol{C} \boldsymbol{e}= \)
\( \mathbf{5 8}, \boldsymbol{E u}=\mathbf{6 3}] \)
A \( \cdot[X e] 4 f^{7} 6 s^{2} \) and \( [X e] 4 f^{2} 6 s^{2} \)
B \( \cdot[X e] 4 f^{4} \) and \( [X e] 4 f^{9} \)
C \( \cdot[X e] 4 f^{2} \) and \( [X e] 4 f^{7} \)
\( \mathbf{D} \cdot[X e] 4 f^{7} \) and \( [X e] 4 f^{1} \)
Subject: Biology
Match the compounds and their
chemical units.
Compound Units
A. \( \quad \) p. Unbranched polymer of glucose Amylopectin
B. Lignin \( \quad \) q. Branched polymer of glucose
Complex polymer of aromatic
C. Chitin \( \quad \) alcohols
D. Proteins \( \quad \) s. Polymer of acetyl glucosamine
t. Polymer of amino acids
\( A \cdot A-p, B-r, C-s, D-t \)
B. \( A-q, B-r, C-s, D-t \)
c. \( A-q, B-p, C-s, D-t \)
\( D \cdot A-p, B-r, C-p, D-t \)
Subject: Maths
\( A B C D \) is a trapezium in which \( A B \) is
parallel to \( D C \). If the diagonals
intersect at \( O \), then which one of the
following is correct?
A \( \cdot \frac{O A}{O C}=\frac{O B}{O D} \)
в. \( \frac{A D}{B C}=\frac{A B}{D C} \)
c. \( \frac{O B}{O C}=\frac{B C}{C D} \)
D. \( \frac{O A}{D C}=\frac{D A}{D C} \)
Subject: Maths
The ends of the latus rectum of the
parabola \( \boldsymbol{x}^{2}+\mathbf{1 0 x}-\mathbf{1 6 y}+\mathbf{2 5}=\mathbf{0} \) are
A \( \cdot(3,4),(-13,4) \)
B. (5,-8),(-5,8)
c. (3,-4),(13,4)
D. (-3,4),(13,-4)
Subject: Physics
A convex lens of focal length \( 10 \mathrm{cm} \) is
painted black at the middle portion as
shown in Fig. An object is placed at a
distance of \( 20 \mathrm{cm} \) from the lens. Then
A. only one image will be formed by the lens
B. The distance between the two images formed by such a lens is \( 6 \mathrm{mm} \)
c. The distance between the images is \( 4 \mathrm{mm} \)
D. The distance between the images is 2 mm
Subject: Maths
\( \lim _{n \rightarrow \infty} \frac{n^{p} \sin ^{2}(n !)}{n+1}, 0<p<1, \) is equal to
\( \mathbf{A} \cdot \mathbf{0} \)
B. \( \infty \)
c. 1
D. none of these
Subject: Chemistry
The orbital angular momentum of an electron is \( \sqrt{3} \frac{h}{\pi}, \) Which of the following
of angular momentum of this electron revolving in unknown Bohr orbit?
A \( \cdot \frac{h}{2 \pi} \)
в. \( \frac{h}{\pi} \)
\( \mathrm{c} \cdot_{3} \frac{h}{\pi} \)
D. none of the above
Subject: Physics
The dimensional formula of mobility is
\( \mathbf{A} \cdot M^{-1} L^{1} T^{2} A^{\mathbf{1}} \)
B. \( M^{1} L^{0} T^{-2} A^{-1} \)
c. \( M^{1} L^{-1} T^{-2} A^{-1} \)
D. \( M^{-1} L^{0} T^{2} A^{1} \)
Subject: Physics
A wooden stick of length \( 3 l \) is rotated
about an end with constant angular velocity \( \omega \) in a uniform magnetic field \( B \) perpendicular to the plane of motion. If the upper one-third of its length is coated with copper, the potential difference across the whole length of the stick is
\( A \)
\[
\frac{9 B \omega l^{2}}{2}
\]
в.
\[
\frac{4 B \omega l^{2}}{2}
\]
c.
\[
\frac{5 B \omega l^{2}}{2}
\]
D.
\[
\frac{B \omega l^{2}}{2}
\]
Subject: Physics
Two long thin conductors \( 10 \mathrm{cm} \) apart
carry currents in the ratio 1: 2 in the
same direction. The magnetic field
midway between them is \( 2 \times 10^{-3} \)
Tesla. The force on 1 metre length of any conductor will be :
\( \mathbf{A} \cdot 2 \pi \times 10^{-3} \) Newton
B. \( 2 \times 10^{-3} \) Newton
c. \( \pi \) Newton
D. 1 Newton
Subject: Maths
Find the mean deviation about the
mean for the data in
\( \mathbf{1 5} \quad \mathbf{2 0} \) \( \boldsymbol{x}_{i} \quad \boldsymbol{5} \quad \mathbf{1 0} \)
3 \( \begin{array}{llll}f_{i} & 7 & 4 & 6\end{array} \)
Subject: Chemistry
Which monomer is responsible for the flexibility property in \( \boldsymbol{P H B V} \) ?
A \( \cdot H O-_{C H_{3}}^{C H}-C H_{3}-C O O H \)
в. \( H O-\quad \begin{array}{c}C H \quad-C H_{2}-C O O H \\ \quad_{c h_{2}-c H_{3}}\end{array} \)
c. \( H O-_{c H_{3}}^{C H}-C H_{2}-C H_{2}-C O O H \)
D. \( H O-\underset{c h_{2}-c H_{3}}{C H}-C H_{2}-C H O \)
Subject: Physics
A light ray is incident normally on the
surface \( A B \) of a prism of refracting angle
\( 60^{\circ} . \) If the light ray does not emerge from
\( A C, \) then find the refractive index of the
prism.
\( ^{A} \cdot_{\mu} \geqslant \frac{\sqrt{3}}{2} \)
B. \( _{\mu} \leqslant \frac{\sqrt{3}}{2} \)
\( c \cdot_{\mu} \geqslant \frac{2}{\sqrt{3}} \)
D. \( _{\mu} \leqslant \frac{2}{\sqrt{3}} \)
Subject: Maths
Let \( S \) be the set of points whose abscissas and ordinates are natural
numbers. Let \( \boldsymbol{P} \in \boldsymbol{S} \) such that the sum
of the distance of \( \boldsymbol{P} \) from (8,0) and (0,12) is minimum among all elements
in
S. Then the number of such points \( P \)
in \( \boldsymbol{S} \) is
\( A \cdot 1 \)
B. 3
\( c .5 \)
D. 11
Subject: Physics
A large steel wheel is to befitted on to a
shaft of the same material. At \( 27^{\circ} \mathrm{C} \), the
outer diameter of the shaft is \( 8.70 \mathrm{cm} \)
and the diameter of the central hole in
the wheel is, \( 8.69 \mathrm{cm} . \) The shaft is cooled using 'dry ice'. At what temperature of the shaft does the whee slip on the shaft? Assume coefficient of linear expansion of the steel to be
constant over the required temperature range \( \boldsymbol{a}_{\text {steel}}=\mathbf{1 . 2 0} \times \mathbf{1 0}^{-\mathbf{5}} \mathbf{K}^{-\mathbf{1}} \)
Subject: Chemistry
The species reduce in the following
reaction is :
\( \boldsymbol{F} \boldsymbol{e}_{2} \boldsymbol{O}_{3}+\boldsymbol{3} \boldsymbol{C} \boldsymbol{O} \rightarrow \boldsymbol{2} \boldsymbol{F} \boldsymbol{e}+\boldsymbol{3} \boldsymbol{C} \boldsymbol{O}_{2} \)
A . \( F e \)
в. \( C O \)
\( c \cdot C O_{2} \)
D. \( F e_{2} O_{3} \)
Subject: Maths
\( P \) is the point (-5,3) and \( Q \) is the point \( (-5, m) . \) If the length of the straight line PQ is 8 units, the the possible value of "m"' is:
A \( .-5 \) and 5
B. - 5 or 11
c. -5 or -11
D. 5 or 11
Subject: Physics
The mass of chlorine \( \left(_{17} C l^{35}\right) \) atom is
34.98 amu, mass of proton \( =1.007825 \) amu, mass of neutron= 1.008665 amu
Then binding energy is :
\( \mathbf{A} \cdot 287.83 \mathrm{Mev} \)
B. 287.83 joules
c. 8.22 Mev
D. 8.22 joule
Subject: Maths
If \( \left(x_{1}-x_{2}\right)^{2}+\left(y_{1}-y_{2}\right)^{2}=a^{2} \)
\( \left(x_{2}-x_{3}\right)^{2}+\left(y_{2}-y_{3}\right)^{2}=b^{2} \)
\( \left(x_{3}-x_{1}\right)^{2}+\left(y_{3}-y_{1}\right)^{2}=c^{2} \) and
\( k\left|\begin{array}{lll}\boldsymbol{x}_{1} & \boldsymbol{y}_{1} & \mathbf{1} \\ \boldsymbol{x}_{2} & \boldsymbol{y}_{2} & \mathbf{1} \\ \boldsymbol{x}_{3} & \boldsymbol{y}_{3} & \mathbf{1}\end{array}\right|=(\boldsymbol{a}+\boldsymbol{b}+\boldsymbol{c})(\boldsymbol{b}+\boldsymbol{c}- \)
\( a)(c+a-b) \times(a+b-c), \) then the
value of \( k \) is
\( A \)
в. 2
\( c \)
D. none of these
Subject: Maths
For given vectors, \( \vec{a}=2 \hat{i}-\widehat{j}+2 \widehat{k} \) and \( \vec{b}=-\hat{i}+\widehat{j}-\widehat{k}, \) find a unit vector in
the direction of the vector \( \vec{a}+\vec{b} \)
Subject: Physics
A concave-convex glass (index \( =\mathbf{1 . 5} \) ) lens has radii of curvatures \( 60 \mathrm{cm} \) and
\( 40 \mathrm{cm} \) respectively. Its convex surface is silvered and it is placed on a horizontal table with concave surface
up. The concave is then filled with a
liquid of index \( 2.0 . \) The combination is
like a
A. concave mirror
B. convex mirror
c. flat mirror
D. convex lens
Subject: Biology
toppr
Q Type your question
tound in
(b) Worms causing disease
elephantiasis is
(c) The open circulatory system is found where the coelomic cavity is
filled with blood.
\( (d) \)
are known to have
pseudocoelom.
A. (a) Liver fluke (Fasciola hepatica)
(b) Filarial worm (Wuchereria bancrofti)
(c) Arthropods
(d) Nematodes
B. (a) Liver fluke (Fasciola hepatica)
(b) Arthropods
(c) Nematodes
(d) Filarial worm (Wuchereria bancrofti)
C . (a) Filarial worm(Fasciola hepatica)
(b) Liver fluke (Wuchereria bancrofti)
(c) Arthropods
(d) Nematodes
D. (a) Filarial worm (Wuchereria bancrofti)
(b) Liver fluke (Fasciola hepatica)
(c) Nematodes
(d) Arthropods
Subject: Chemistry
A neutral atom of an element has \( 2 \mathrm{K}, 8 \mathrm{L} \)
\( 9 \mathrm{M} \) and \( 2 \mathrm{N} \) electrons. The total number
of \( s \) electrons are:
\( A \cdot 8 \)
B. 6
\( c \cdot 4 \)
D. 10
Subject: Physics
An intense stream of water of cross-
sectional area \( A \) strikes a wall at an
angle \( \theta \) with the normal to the wall and
returns back elastically. If the density of
water is \( \rho \) and its velocity is \( v, \) then the
force exerted in the wall will be
A .2 Avpcos \( \theta \)
B . \( 2 A v^{2} \rho \cos \theta \)
\( \mathbf{c} \cdot 2 A v^{2} \rho \)
D. 2 Av \( \rho \)
Subject: Physics
At what depth in an ocean will a bubble
of air have one fourth the volume it will
have on reaching the surface?
(Atmospheric pressure \( =\mathbf{7 6} \) cm of \( \boldsymbol{H} \boldsymbol{g} \)
and density of \( \boldsymbol{H} \boldsymbol{g}=\mathbf{1 3 . 6} \boldsymbol{g} \boldsymbol{c m}^{-3} \mathbf{)} \)
Subject: Maths
If \( \boldsymbol{z}_{1}=\boldsymbol{x}_{1}+\boldsymbol{i} \boldsymbol{y}_{1}, \quad \boldsymbol{z}_{2}=\boldsymbol{x}_{2}+\boldsymbol{i} \boldsymbol{y}_{2}, \) then
\( \mathbf{2} i\left|\begin{array}{ll}\boldsymbol{x}_{2} & \boldsymbol{y}_{2} \\ \boldsymbol{x}_{1} & \boldsymbol{y}_{1}\end{array}\right| \) equals
A \( \cdot \overline{z_{1}} z_{2}-z_{1} \overline{z_{2}} \)
B . \( z_{1} \overline{z_{2}}-z_{2} \overline{z_{1}} \)
C . \( \left|z_{1}\right|^{2}-\left|z_{2}\right|^{2} \)
D . \( \left|z_{1}\right|^{2}-\left|z_{1}-z_{2}\right|^{2} \)
Subject: Maths
If \( \alpha \) and \( \beta \) are roots of equation
\( \frac{3}{4} \sin \left(\frac{\theta}{9}\right)=\sin ^{3} \theta+3 \sin ^{3}\left(\frac{\theta}{3}\right)+ \)
\( 9 \sin ^{3}\left(\frac{\theta}{9}\right)+\frac{1}{4 \sqrt{2}} \) for \( 0<\theta<\frac{\pi}{2} \) then
\( \tan \alpha+\tan \beta \) is equal to
A \( .2+\sqrt{3} \)
B. \( 3+\sqrt{3} \)
c. \( 3-\sqrt{3} \)
D. \( 2-\sqrt{3} \)
Subject: Physics
What is the mass defect and the
binding energy of \( _{27} C o^{59} \) which has a
nucleus of mass of \( 58.933 u ? \)
\( \left(\boldsymbol{m}_{\boldsymbol{p}}=\mathbf{1 . 0 0 7 8 u}, \boldsymbol{m}_{\boldsymbol{n}}=\mathbf{1 . 0 0 8 7 u}\right) \)
B. 617.914 MeV
c. 17.914 Mev
D. 717.914 Mev
Subject: Physics
A beam of light of wavelength 600 nm
from a distant source falls on a single slit \( 1 \mathrm{mm} \) wide and the resulting diffraction pattern is observed on a screen \( 2 \mathrm{m} \) away. The distance between the first dark fringes on either side of the central bright fringe is?
A . \( 1.2 \mathrm{cm} \)
B. \( 1.2 \mathrm{mm} \)
\( c .2 .4 \mathrm{cm} \)
D. \( 2.4 \mathrm{mm} \)
Subject: Physics
\( \mathrm{g}_{2} U^{235} \) nucleus absorbs a neutron and disintegrates into \( _{54} X e^{139},_{38} S r^{94} \) and
X. What will be the product \( X ? \)
A. 2 neutrons
B. 3 neutrons
c. \( \alpha \) -particle
D. \( \beta \) -particle
Subject: Physics
A uniform solid cylinder is given a linear
velocity and angular velocity, so that it rolls without sliding up the incline. Out
of the four points \( A, B, C \) and centre of mass, about which point its angular
momentum will be conserved?
(A and \( C \) are taken at appropriate distance)
\( A \cdot \) Point \( A \)
B. Point B
C. Point \( C \)
D. Centre of mass
Subject: Maths
If \( |\boldsymbol{A}|=\mathbf{3} \) and \( \boldsymbol{A}^{-1}=\left[\begin{array}{cc}\mathbf{3} & -\mathbf{1} \\ -\mathbf{5} & \mathbf{2} \\ \hline \mathbf{3} & \mathbf{3}\end{array}\right] \) then
\( \boldsymbol{a} \boldsymbol{d} \boldsymbol{j} \boldsymbol{A}=? \)
\( \mathbf{A} \cdot\left[\begin{array}{cc}9 & 3 \\ -5 & -2\end{array}\right] \)
В. \( \left[\begin{array}{cc}9 & -3 \\ -5 & 2\end{array}\right] \)
\begin{tabular}{lll} 
C. \( \left[\begin{array}{cc}-9 & 3 \\
5 & -2\end{array}\right] \) \\
\hline
\end{tabular}
D. \( \left[\begin{array}{cc}9 & -3 \\ 5 & -2\end{array}\right] \)
Subject: Biology
The characteristic(s) common to urea,
uric acid, and ammonia is/are
(i) They are nitrogenous wastes.
(ii) They all need a very large amount of water for excretion.
(iii) They are all equally toxic.
(iv) They are produced in the kidneys.
A. (i), (ii) and (iv)
B. (i) only
c. (i) and (iii)
D. (i) and (iv)
Subject: Maths
\( \sin ^{-1}\left(\cos \left(\sin ^{-1} x\right)\right)+ \)
\( \cos ^{-1}\left(\sin \left(\cos ^{-1} x\right)\right) \) is equal to
A.
в. \( \frac{\pi}{2} \)
c. \( \frac{3 \pi}{4} \)
D.
Subject: Maths
If \( \boldsymbol{w}=\frac{\boldsymbol{z}}{\boldsymbol{z}-\frac{1}{\mathbf{3}} \boldsymbol{i}} \) and \( |\boldsymbol{w}|=1 \) then \( \boldsymbol{z} \)
lies on
A . a circle
B. an ellipse
c. a parabola
D. a straight line
Subject: Chemistry
Assertion
The dialysis a technique for purification of sol is used to remove the soluble and
insoluble impurities present in sol.
Reason
The dialysis is based on different rate of diffusion of true solution and collodial
solution particles.
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
Subject: Physics
\( 60 \mathrm{cc} \) of a liquid of relative density 1.4 is mixed with \( 40 \mathrm{cc} \) of another liquid of relative density 0.8. The density of the resulting mixture will be
A. \( 1.16 \mathrm{g} / \mathrm{cc} \)
B. 2.26 g/cc
c. \( 11.6 \mathrm{g} / \mathrm{cc} \)
D. 116 g/cc
Subject: Maths
\( \int_{\pi^{2} / 16}^{\pi^{2} / 4} \frac{\sin \sqrt{x}}{\sqrt{x}} d x= \)
A \( \cdot \sqrt{2} \)
B. \( 1 / \sqrt{2} \)
\( c \cdot 2 \sqrt{2} \)
D. \( \pi / 2 \)
Subject: Physics
\( 200 \mathrm{g} \) of hot water at \( 80^{0} \mathrm{C} \) is added to
300 g of cold water at \( 10^{0} \) C. Neglecting the heat taken by the container, calculate the final temperature of the
mixture of water. Specific heat
capacity of water \( =4200 \mathrm{J} \mathrm{kg}^{-1} \mathrm{K}^{-1} \)
Subject: Maths
\( \boldsymbol{A E} \)
A \( \cdot \overrightarrow{A E}=\frac{1}{2}(\bar{a}+\bar{b}) \)
B \( \cdot \overrightarrow{A E}=\frac{1}{2}(\bar{a}-\bar{b}) \)
C \( \cdot \overrightarrow{A E}=\frac{1}{2}(\bar{b}-\bar{a}) \)
D. none of these
Subject: Physics
A spectrum is obtained by sending a beam of white light through a prism. \( \mathbf{A} \)
second prism exactly similar to the first
one is placed in an inverted position
with the sides parallel to the first. Now
A. A new spectrum will be formed on the screen with double the number of colours present in the previous spectrum
B. New spectrum will be obtained on the screen with only half the number of colours present in the previous spectrum
C. Previous spectrum will disappear and we will obtain a white light formed by the fusion of the colours
D. A spectrum with same number of colours present in the previous spectrum will be formed but their wave lengths will be increased twice
Subject: Physics
A potentiometer wire of length \( 10 m \) is connected in series with a battery. The
e.m.f. of a cell balances against \( 250 \mathrm{cm} \) length of wire. If length of potentiometer wire is increased by \( 1 m, \) the new
balancing length of wire will be
\( \mathbf{A} \cdot 2.00 m \)
B. \( 2.25 m \)
c. \( 2.50 m \)
D. \( 2.75 m \)
Subject: Chemistry
Assertion
A mixture of nitrogen and carbon dioxide can be distinguished by passing it through lime water.
Reason
Nitrogen does not turn lime water milky
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
Subject: Biology
Read the following statements:
(A) Nasal chamber opens into
nasopharynx which is a portion of
pharynx
(B) Larynx produces sound during inspiration as well as expiration
(C) During swallowing gullet can be covered by a thin elastic cartilagenous flap called epiglottis
(D) Trachea is get divided at the level of the 6th thoracic vertebra into right and
left primary bronchi.
(E) The braching network of bronchi, bronchioles and alveoli comprise the lungs.

How many statements are not correct-
\( A \cdot 2 \)
B. 3
\( c \cdot 4 \)
D.
Subject: Physics
Determine the current through zener
diode for the circuit shown in figure is:
(Given: zener diode break down voltage
\( \left.V_{z}=5.6 V\right) \)
\( \mathbf{A} \cdot 7 m A \)
В. \( 17 m A \)
c. \( 10 m A \)
D. \( 15 \mathrm{mA} \)
Subject: Chemistry
Treatment of \( 2- \) butene \( (\text { cis and trans }) \)
with N-bromosuccinimide in \( \boldsymbol{C C l}_{\mathbf{4}} \)
would yield mainly :
\( A \)
\( \mathrm{CH}_{3} \mathrm{CHBrCH}=\mathrm{CH}_{2} \) and \( \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCH}_{2} \mathrm{Br} \)
B. \( \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CBrCH}_{3} \) alone
\( c \)
\( \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCH}_{2} \mathrm{Br} \) alone
D. \( \mathrm{CH}_{2} \mathrm{BrCH}_{2} \mathrm{CH}=\mathrm{CH}_{2} \) and \( \mathrm{CH}_{3} \mathrm{CH}=\mathrm{CHCH}_{2} \mathrm{Br} \)
Subject: Maths
Let \( A \) and \( B \) be two events such that
\( \boldsymbol{P}(\overline{\boldsymbol{A} \cup \boldsymbol{B}})=\frac{1}{6}, \boldsymbol{P}(\boldsymbol{A} \cap \boldsymbol{B})=\frac{1}{4} \) and
\( P(\bar{A})=\frac{1}{4}, \) where \( \bar{A} \) stands for the
complement of the event A. Then, the
events \( A \) and \( B \) are
A. Independent but not equally likely
B. Independent and equally likely
c. Mutually exclusive and independent
D. Equally likely but not independent
Subject: Physics
topp
Q туре your question
ranges, of \( 0-2 V, 0-10 V \) and 0
\( 20 V \). The appropriate circuit to do so is
A \( \cdot R_{1}=1900 \Omega \)
\( R_{2}=9900 \Omega \)
\( R_{3}=19900 \Omega \)
B . \( R_{1}=2000 \Omega \)
\( R_{2}=8000 \Omega \)
\( R_{3}=10000 \Omega \)
c. \( R_{1}=19900 \Omega \)
\( R_{2}=9900 \Omega \)
\( R_{3}=1900 \Omega \)
D. \( R_{1}=1900 \Omega \)
\( R_{2}=8000 \Omega \)
\( R_{3}=10000 \Omega \)
Subject: Chemistry
Five students, Ankit, Nitin, Deepika, Gunjan and Pooja were given test tubes having solutions with \( \mathrm{pH} 1.2,13.5,10.0 \) 7.4 and 2.2 respectively. The correct
order of decreasing \( \boldsymbol{O} \boldsymbol{H}^{-} \) ion concentration in these solutions is:
A. Ankit>Pooja > Gunjan > Deepika > Nitin
B. Nitin > Gunjan>Ankit>Pooja > Deepika
c. Deepika > Gunjan > Pooja > Nitin > Ankit
D. Nitin > Deepika > Gunjan > Pooja > Ankit
Subject: Physics
A car moving with constant acceleration covered the distance
between two points \( 60.0 m \) apart in
\( 6.00 s . \) Its speed as it passes the second point was \( 15.0 m / s . \) At what prior
distance from the first was the car at
rest?
A. \( 7.5 \mathrm{m} \)
B. \( 15 \mathrm{m} \)
\( c .60 m \)
D. \( 30 m \)