AkshitPareek2004/jee-question-analyzer-data huggingface dataset:
Subject: Physics
A car is moving on a straight road. The velocity of the car varies with time as
shown in figure. Initially \( (a t t=0), \) the
car was at \( \boldsymbol{x}=\mathbf{0}, \) where, \( \boldsymbol{x} \) is the
position of the car at any time \( t \)
The time interval during which the car
is retarding can be:
\( \mathbf{A} \cdot t=50 s \) to \( t=70 s \)
B. \( t=30 s \) to \( t=50 s \)
\( \mathbf{c} \cdot t=30 s \) to \( t=60 s \)
\( \mathbf{D} \cdot t=10 s \) to \( t=20 \)
Subject: Physics
A rod of length \( 50 \mathrm{cm} \) moves with a
speed of \( 10 \mathrm{cm} / \mathrm{s} \), in a uniform
magnetic field of strength \( 10 G \) at an
angle of \( 30^{\circ} \) with the field. The emf
induced across the ends of the rod is :
A. 5000 CGS unit
B. \( 2500 \mathrm{CGS} \) unit
c. 7500 CGS unit
D. \( 1000 \mathrm{CGS} \) unit
Subject: Chemistry
For the reaction at \( 298 \mathrm{K}, 2 \mathrm{A}+\mathrm{B} \rightarrow C \)
\( \triangle H=400 \mathrm{KJ} \mathrm{mol}^{-1} \) and \( \triangle \mathrm{S}=0.02 \mathrm{KJ} \)
\( \boldsymbol{K}^{-1} \boldsymbol{m} \boldsymbol{d}^{-1} \)
At what temperature will the reaction
become spontaneous considering \( \triangle \mathrm{H} \) and \( \triangle S \) to be constant over the
temperature range?
Subject: Maths
A straight line passes through the points (2,4) and \( (5,-2) . \) Taking \( 1 c m= \) 1 units, mark these points on a graph
paper and draw the straight line through these points. If points \( (\boldsymbol{m},-\mathbf{4}) \)
and \( (3, n) \) lie on the drawn line, find the
values of \( m \) and \( n \)
A. \( m=1 \) and \( n=2 \)
B. \( m=3 \) and \( n=2 \)
c. \( m=6 \) and \( n=2 \)
D. \( m=9 \) and \( n=2 \)
Subject: Physics
A car travelling \( 20 m / s \) enters into a
unbanked curve with a radius of \( 25 m \)
If the coefficient of friction between the
tires and the road is \( 0.75, \) what is the
magnitude of the change in velocity of the car if the car is going to stay in its lane?
\( \mathbf{A} \cdot \Delta v=3.20 m / s \)
B. \( \Delta v=6.40 m / s \)
c. \( \Delta v=12.8 m / s \)
D. \( \Delta v=13.6 \mathrm{m} / \mathrm{s} \)
E \( . \Delta v=26.4 m / s \)
Subject: Biology
The figure represents total period of one cardiac cycle ie 0.8 sec and \( A, B \) and \( C \)
represent its stages. Identify \( A, B \) and \( C \)
and select the correct statement
regarding them.
A. During A, tricuspid and bicuspid valves open and blood flows from atria into the ventricles.
B. During B, bicuspid and tricuspid valves close producing first heard sound
C. During C, the semilunar valves close producing second heart sound.
D. During B, the atria contract due to a wave of contraction by SA node.
Subject: Physics
The equation of the transverse wave travelling in a rope is given by \( \mathbf{y}= \) \( 5 \sin (4 t-0.02 x) \) where \( y \) and \( x \) are in
meters and \( t \) is in seconds. Calculate
the intensity of the wave if the density
of rope material is \( 1250 \mathrm{kg} / \mathrm{m}^{3} \)
A. \( 2000 \mathrm{kJm}^{-2} \mathrm{s}^{-1} \)
B. \( 10 \mathrm{kJm}^{-2} \mathrm{s}^{-1} \)
c. \( 40 \mathrm{kJm}^{-2} \mathrm{s}^{-1} \)
D. 3 \( k J m^{-2} s^{-1} \)
Subject: Chemistry
Consider the hydrogen atom to be a
proton embedded in a cavity of radius
\( a_{0} \) (Bohr's radius), whose charge is
neutralized by the addition of an electron to the cavity in vacuum, infinitely slowly. Then the wavelength of the electron when it is at a distance of
\( a_{0} \) from the proton will be
A \( \cdot \lambda=\sqrt{\frac{4 \pi \varepsilon_{0} a_{0}}{h^{2} e^{2} m}} \)
B. \( \lambda=\sqrt{\frac{4 \pi \varepsilon_{0} a_{0} h^{2}}{e m}} \)
\( ^{\mathbf{c}} \cdot_{\lambda}=\sqrt{\frac{4 \pi \varepsilon_{0} a_{0} h^{2}}{e^{2} m}} \)
D. \( \lambda=\sqrt{\frac{4 \pi \varepsilon_{0} a_{0} h^{2}}{e^{5} m}} \)
Subject: Maths
Plane \( a x+b y+c z=1 \) intersect axes \( \operatorname{in} A, B, C \) respectively. If \( G\left(\frac{1}{6},-\frac{1}{3}, 1\right) \)
is a centroid of \( \triangle A B C \) then \( a+b+ \)
\( 3 c=-1 \)
A \( \cdot \frac{4}{3} \)
B. 4
\( c \cdot 2 \)
D.
Subject: Maths
The magnitude of a position vector in a XY plane is \( 4 . \) Its slope is \( \frac{1}{\sqrt{3}}, \) then the position vector is:
A. \( \sqrt{3 i}+3 \)
B . \( 2 \sqrt{3} \hat{i}-2 \hat{j} \)
c. \( 2 \sqrt{3 i}+2 \hat{j} \)
D. \( 2 \hat{i}+2 \sqrt{3} \hat{j} \)
Subject: Chemistry
Oxidation number of \( C r \) in the following
compounds are \( \boldsymbol{x}, \boldsymbol{y}, \boldsymbol{z} \) and \( \boldsymbol{w} \)
respectively. \( \boldsymbol{K}[\underset{\boldsymbol{x}}{\boldsymbol{C r} \boldsymbol{O}\left(\boldsymbol{O}_{2}\right)(\boldsymbol{O} \boldsymbol{H})}], \quad \boldsymbol{K}_{\boldsymbol{3}}[\underset{\boldsymbol{y}}{\boldsymbol{C r}\left(\boldsymbol{O}_{2}\right)_{4}}] \)
These values are, respectively:
A. 6,13,5,6
в. 4,4,4,6
c. 4,5,4,6
D. 4,5,6,6
Subject: Maths
The angle subtended by the vector \( \overline{\boldsymbol{A}}= \) \( 4 \hat{i}+3 \hat{j}+12 \hat{k} \) with the \( x \) -axis is
A \( \cdot \sin ^{-1}\left(\frac{3}{13}\right) \)
B \( \cdot \sin ^{-1}\left(\frac{4}{13}\right) \)
c. \( \cos ^{-1}\left(\frac{4}{13}\right) \)
D \( \cdot \cos ^{-1}\left(\frac{3}{13}\right) \)
Subject: Chemistry
Stability of ions of \( G e, S n \) and \( P d \) will be in the order:
This question has multiple correct options
A. \( G e^{2+}<S n^{2+}<P b^{2+} \)
B. \( G e^{4+}>S n^{4+}>P b^{4+} \)
\( \mathrm{c} \cdot S n^{4+}>S n^{2} \)
\( D \cdot P b^{2+}>P b^{4} \)
Subject: Physics
Consider the following statements A and \( \mathrm{B} \) and identify the correct answer
A: Thermistors can have only -ve temperature coefficient of resistors.
B : Thermistors with -ve temperature coefficients of resistance are used as
resistance thermometers to measure
low temperature of the order of \( 10 \mathrm{K} \)
A. 1 both \( A \) and \( B \) are true
B. 2) both A and B are false
c. 3 ) A is true and \( B \) is false
D. 4 ) A is false, but \( B \) is true
Subject: Chemistry
Assertion
Decrease in the vapour pressure of
water by adding 1 mol of sucrose to one jg of water is higher to that produced by
adding 1 mol of urea to the same quantity of water at the same temperature.
Reason
Molecular mass of sugar is less than
that of urea.
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: Physics
Assertion
When variable frequency AC source is connected to a capacitor, displacement
current increases with increase in
frequency
Reason
As frequency increases conduction
current also increases
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: Physics
A square hole of side a is made at a
depth \( h \) below water surface and to the
side of a water container another
circular hole of radius \( r \) is made to the
same container at a depth of \( 4 h . \) It
is found that volume flow rate of water
through both the holes is found to be same then:
A \( \cdot r=\frac{a}{2 \sqrt{\pi}} \)
В \( \cdot a=\frac{r}{2 \sqrt{\pi}} \)
c. \( a=\frac{r}{\sqrt{2 \pi}} \)
D. \( r=\frac{a}{\sqrt{2 \pi}} \)
Subject: Chemistry
Which set of terms correctly identifies the carbohydrate shown?
(1) Pentose
(2) Pentulose
(3) Hexulose
(4) Hexose
(5) Aldose
(6) Ketose
Pyranose
(8) Furanose
A. 2,6,8
в. 2,6,7
\( c \cdot 1,5,8 \)
D. A set of terms other than these
Subject: Chemistry
Q Type your question
Substance Mass(gm) in moles
\( \begin{array}{ll}C H_{3} C O O H & 0.742\end{array} \)
0.0
\( H \)
195
Beaker
The two liquids \( C H_{3} C O O C H_{3} \) and
\( C H C l_{3} \) combine in such away that they
form a single H-bond between each pair of molecules. In an experiment to determine the approximate strength of this bond, samples of the two liquids were mixed in an insulated glass
beaker and the temperature was found to rise by \( 1^{0} C . \) Other data are given in the table.

The approximate strength of the H bond according to the above experiment (in kJ/mole) will be:
A. 0.73
B. 3.6
\( c \cdot 4.9 \)
D. 2.8
Subject: Maths
Let \( A=Q \times Q \) and let \( ^{\star} \) be a binary
operation on A defined by \( (a, b) * \)
\( (c, d)= \)
\( (a c, b+a d) \) for \( (a, b),(c, d) \epsilon A \)
Determine, whether \( ^{*} \) is commutative and associative. Then, with respect to
on \( A \)
Find the invertible elements of \( A \)
Subject: Physics
Copper contains \( 8.4 \times 10^{28} \) free
electrons \( / m^{3} . \) A copper wire of crosssectional area \( 7.4 \times 10^{-7} m^{2} \) carries a
current of 1 A. The electron drift speed is approximately.
A \( \cdot 10^{-8} \mathrm{m} / \mathrm{s} \)
B. \( 10^{3} \mathrm{m} / \mathrm{s} \)
\( c \cdot 1 m / s \)
D. \( 10^{-3} \mathrm{m} / \mathrm{s} \)
Subject: Maths
Area of circle in which a chord of length
\( 2 \sqrt{3} \) units, subtends angle \( 120^{\circ} \) at its
centre is :
A . \( \pi \) sq units
B. 2 \( \pi \) sq units
c. \( 4 \pi \) sq units
D. \( 5 \pi \) sq units
Subject: Physics
A particle moving rectilinearly with constant acceleration is having initia velocity of \( 10 \mathrm{m} / \mathrm{s} \). After some time, its velocity becomes \( 30 \mathrm{m} / \mathrm{s} \). Find out velocity of the particle at the mid point of its path?
A \( \cdot 10 \sqrt{5} \mathrm{m} / \mathrm{s} \)
B. \( 50 \sqrt{5} \mathrm{m} / \mathrm{s} \)
c. \( 60 \sqrt{5} \mathrm{m} / \mathrm{s} \)
D. \( 5 \sqrt{5} \mathrm{m} / \mathrm{s} \)
Subject: Chemistry
Which Nernst equation is true to find
out the potential of non-standard
electrochemical cell from the following?
\( \boldsymbol{F} \boldsymbol{e}(\boldsymbol{s})\left|\boldsymbol{F} \boldsymbol{e}^{2+}(\boldsymbol{x} \boldsymbol{M}) \| \boldsymbol{I}^{-}(\boldsymbol{a} \boldsymbol{q} \cdot)\right| \boldsymbol{I}_{2}(\boldsymbol{s})(\boldsymbol{P} \boldsymbol{t}) \)
\( \mathbf{A} \cdot_{E e l l}=E_{c e l l}^{\circ}-\frac{0.592}{n} \log _{10}\left[F e^{2+}\right]\left[I^{-}\right]^{2} \)
B. \( \quad E_{\text {cell }}=E_{\text {cell }}^{\circ}-\frac{0.0592}{n} \log _{10}\left[\mathrm{Fe}^{2+}\right]\left[I^{-}\right]^{2} \)
\( ^{\mathbf{C}} E_{\text {cell }}=E_{\text {cell }}^{\circ}-\frac{0.0592}{n} \log _{10}\left[F e^{2+}\right]\left[I^{-}\right] \)
D \( \quad E_{\text {cell }}=E_{\text {cell }}^{\circ}-\frac{0.0592}{n} \log _{10} \frac{\left[F e^{2+}\right]\left[I^{-}\right]^{2}}{[F e]\left[I_{2}\right]} \)
Subject: Physics
A system is oscillating with undamped simple harmonic motion.Then the
This question has multiple correct options
A. average total energy per cycle of the motion is its maximum kinetic energy
B. average total energy per cycle of the motion is \( \frac{1}{\sqrt{2}} \)
times its maximum kinetic energy
C root mean square velocity is \( \frac{1}{\sqrt{2}} \) times its maximum
velocity
D. mean velocity is \( \frac{1}{2} \) of maximum velocity
Subject: Biology
Assertion
The external factors that affect
photosynthesis are number, size, age and orientation of leaves, mesophyll cells and chloroplasts and the amount of chlorophyll.
Reason
The internal factors that affect
photosynthesis are availability of
sunlight, temperature \( , C O_{2} \) concentration and water
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: Physics
The potential in certain region is given
as \( V=2 x^{2}, \) then the charge density of
that region is
A \( \cdot-\frac{4 x}{\varepsilon_{0}} \)
в. \( -\frac{4}{\varepsilon_{0}} \)
\( \mathbf{c} .-4 \varepsilon_{0} \)
D. \( -2 \varepsilon_{0} \)
Subject: Physics
A car travels \( 6.0 \mathrm{km} \) along a main road
in 6.0 minutes. It then travels \( 2.0 \mathrm{km} \)
along a minor road in 6.0 minutes. Which calculation of average speed for
the whole journey is correct?
A. \( 8.0 \div 12.0=0.67 \mathrm{km} / \mathrm{minute} \)
в. \( 12.0 \div 8.0=1.57 \mathrm{km} / \mathrm{minute} \)
c. \( 8.0+12.0=20 \mathrm{km} / \mathrm{minute} \)
D. \( 8.0 \times 12.0=96 \mathrm{km} / \mathrm{minute} \)
Subject: Physics
An automobile engine develops \( 100 k W \)
when rotating at a speed of \( \mathbf{1 8 0 0} \) rev/min. The torque it delivers is
A . \( 3.33 N-m \)
B . \( 200 N-m \)
c. \( 530.5 N-m \)
D. \( 2487 N-m \)
Subject: Chemistry
Which of the following is most stable
\( \operatorname{among} \boldsymbol{C u}^{+}, \boldsymbol{F e}^{+}, \boldsymbol{F e}^{2+}, \boldsymbol{a n d} \boldsymbol{F e}^{3+} \)
A \( \cdot C u^{+} \)
B. \( F e^{+} \)
\( \mathrm{c} \cdot F e^{2} \)
D. \( F e^{3} \)
Subject: Physics
Two solid rubber balls, A and B having masses 200 and 400 g respectively are moving in opposite directions
with velocity of A equal to \( 0.3 m / s \). After collision the two balls come to rest, then the velocity of B is-
A. \( 0.15 \mathrm{m} / \mathrm{s} \)
в. \( 1.5 \mathrm{m} / \mathrm{s} \)
c. \( -0.15 \mathrm{m} / \mathrm{s} \)
D. None of the above
Subject: Maths
if \( \frac{1}{1^{2}}+\frac{1}{2^{2}}+\frac{1}{3^{2}}+\ldots . . . . . \) upto \( \infty=\frac{\pi^{2}}{6} \)
\( \operatorname{then} \frac{1}{1^{2}}+\frac{1}{3^{2}}+\frac{1}{5^{2}}+\ldots \)
A \( \cdot \pi^{2} / 8 \)
в. \( \pi^{2} / 12 \)
c. \( \pi^{2} / 3 \)
D . \( \pi^{2} / 9 \)
Subject: Chemistry
Some reasons are given regarding the
limited use of \( \boldsymbol{H}_{2} \) as fuel:
I) Its calorific value is low.
Il) Its availability in free state is less.
III) It is difficult to store.
IV) It is easy to transport.
The correct statements are:
\( A \cdot \) ।, ॥ । and \( \| 1 \)
B. II, III and IV
c. ॥ and III
D. I and III
Subject: Physics
A man can swim with a speed of 4.0 \( k m / h r \) in still water. How long does
he take to cross a river \( 1.0 \mathrm{km} \) wide, if
the river flows steadily at \( 3.0 \mathrm{km} / \mathrm{hr} \) and he makes his strokes normal to the
river current? How far down the river
does he go, when he reaches the other bank?
Subject: Physics
A point traversed half a circle of radius \( \boldsymbol{R}=\mathbf{1 6 0} \mathbf{c m} \) during time interval \( \boldsymbol{\tau}= \)
10.0 \( s \). Calculate the average velocity.
A. \( 32 c m / s \)
в. \( 25 \mathrm{cm} / \mathrm{s} \)
c. \( 100 \mathrm{cm} / \mathrm{s} \)
D. \( 42.5 \mathrm{cm} / \mathrm{s} \)
Subject: Physics
If a charged particle goes unaccelerated in a region containing electric and magnetic fields:
A . \( \vec{E} \) must be parallel to \( \vec{B} \)
B. \( \bar{V} \) must be perpendicular to Electric field
c. \( \vec{V} \) must be parallel to \( \vec{B} \)
D. \( E \) must be equal to \( v B \)
Subject: Maths
If three positive real numbers \( a, b, c \) are
in \( A . P . \) such that \( a b c=4, \) then the
minimum possible value of \( b \) is
\( \mathbf{A} \cdot 2^{3 / 2} \)
B. \( 2^{2 / 3} \)
\( \mathbf{c} \cdot 2^{1 / 3} \)
D. \( 2^{5 / 2} \)
Subject: Maths
If 'p' and 'q' are the coefficients of \( x^{a} \) and
\( x^{b} \) respectively in \( (1+x)^{a+b}, \) then
A. \( 2 p=q \)
В. \( p+q=0 \)
c. \( p=q \)
D. \( p=2 q \)
Subject: Physics
The displacement of a particle after
time \( t \) is given by \( \boldsymbol{x}=\left(\boldsymbol{k} / \boldsymbol{b}^{2}\right)\left(\mathbf{1}-\boldsymbol{e}^{-\boldsymbol{b} \boldsymbol{t}} \boldsymbol{t}\right. \)
where b is a constant. What is the
acceleration of the particle?
A \( \cdot k e^{-b} \)
B. \( -k e^{-b} \)
\( \mathbf{c} \cdot \frac{k}{b^{2}} e^{-b t} \)
D. \( \frac{-k}{b^{2}} e^{-b t} \)
Subject: Chemistry
\( N O_{2} \) is not obtained when following is
heated.
\( \mathbf{A} \cdot \operatorname{Pb}\left(N O_{3}\right)_{2} \)
в. \( A g N O_{3} \)
c. \( C a\left(N O_{3}\right)_{2} \)
D. \( K N O_{3} \)
Subject: Chemistry
Conjugate base of \( \boldsymbol{H} \boldsymbol{P} \boldsymbol{O}_{4}^{2-} \) is:
\( \mathbf{A} \cdot P O_{4}^{3-} \)
в. \( H_{2} P O_{4}^{-} \)
c. \( H_{3} P O_{4} \)
D. \( H_{4} P O_{3} \)
Subject: Maths
In figure, \( A B C D \) is a trapezoid in which
\( A B \) is parallel to \( \overline{C D}, \overline{A D} \) is perpendicular to \( \overline{D C} \), and \( \overline{A D} \) is
perpendicular to \( \overline{A B} \). Calculate the length of \( B C \).
4
3.
\( c \)
\( D \)
\( E \)
Subject: Chemistry
Specify the co-ordination geometry
around and hybridization of \( N \) and \( B \)
atoms in a 1: 1 complex of \( B F_{3} \) and
\( \boldsymbol{N} \boldsymbol{H}_{3}: \)
\( \mathbf{A} \cdot N: \) tetrahedral, \( s p^{3} ; B: \) tetrahedral, \( s p^{3} \)
B. \( N: \) pyramidal, \( s p^{3} ; B: \) pyramidal, \( s p^{3} \)
C. \( N: \) pyramidal, \( s p^{3} ; B: \) planar, \( s p^{2} \)
D. \( N: \) pyramidal, \( s p^{3} ; B: \) tetrahedral, \( s p^{3} \)
Subject: Biology
Which one of the following is a possibility for most of us in regard to breathing, by making a conscious effort?
A. One can breathe out air totally without oxygen
B. One can breathe out air through Eustachian tube by closing both nose and mouth
c. one can consciously breathe in and breathe out by moving the diaphragm alone, without moving the ribs at all
D. The lungs can be made fully empty by forcefully breathing out all air from them.
Subject: Chemistry
If \( \boldsymbol{K}_{s p} \) for \( \boldsymbol{A} \boldsymbol{g} \boldsymbol{C l}=\mathbf{1 . 7} \times \mathbf{1 0}^{-\mathbf{1 0}}, \) then find
the concentration of the \( A g^{+} \) ion in a
saturated solution of \( A g C l ? \)
A \( \cdot 1.7 \times 10^{-10} M \)
В. \( 3.4 \times 10^{-10} M \)
c. \( 1.3 \times 10^{-5} M \)
D. 2.6 \( \times 10^{-5} M \)
Subject: Chemistry
In the electrolysis of \( A g N O_{3} \) solution
\( 0.7 \mathrm{g} \) of \( \mathrm{Ag} \) is deposited after a certain period of time. Calculate the quantity of electricity required in coulomb. Molar mass of \( \mathrm{Ag} \) is \( 107.9 \mathrm{gmol}^{-1} \)
A \( \cdot 426^{\circ} \mathrm{C} \)
B. \( 536^{\circ} \mathrm{C} \)
c. \( 626^{\circ} \mathrm{C} \)
D. \( 736^{\circ} \mathrm{C} \)
Subject: Chemistry
Formation of \( C a O \) by Born-Haber cycle
involves which of the following
processes?
A. Sublimation of \( C a \)
B. Ionization of \( C a \) to \( C a^{+2} \)
C. Homolytic Bond dissociation of \( O_{2} \)
D. Electron Affinity of \( O \) to \( O^{2-} \)
E. All of these
Subject: Physics
A batsman hits back a ball straight in the direction of the bowler without
changing its initial speed of \( 12 m s^{-1} . \) If the mass of the ball is \( 0.15 k g \)
determine the change in momentum of the ball. (Assume linear motion of the ball)
A. \( 3.6 k g m / s \)
в. \( 5 k g m / s \)
c. \( 3.5 k g m / s \)
D. \( 7 k g m / s \)
Subject: Physics
If \( g \) is acceleration due to gravity on the earth's surface, the gain in the potential energy of an object of mass \( m \) raised from the surface of earth to a height equal to the radius \( R \) of the earth is
\( ^{\mathbf{A}} \cdot \frac{1}{2}^{m g R} \)
в. \( 2 m g R \)
\( \mathrm{c} \cdot m g R \)
D. \( \frac{1}{4} m g R \)
Subject: Chemistry
Which of the following catalysis is an example of negative catalysis?
A \( \cdot 2 S O_{2}+O_{2} \stackrel{V_{2} O_{5}}{\longrightarrow} 2 S O_{3} \)
в. \( C H C l_{3}+O_{2} \stackrel{\text { агсодо } l}{\longrightarrow} 2 C O C l_{2}+2 H C l \)
\( ^{\mathrm{c}} \cdot 2 K C l O_{3} \frac{M n O_{2}}{\Delta} 2 K C l+3 O_{2} \)
D. \( C O+3 H_{2} \stackrel{N i}{\longrightarrow} C H_{4}+H_{2} O \)
Subject: Biology
Assertion
Achlorophyllous, multicellular and
eukaryotic decomposers are fungi.
Reason
Fungi have cell wall rich in cellulose and specialized chitin.
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: Maths
The dimensions of cuboid are in the
ratio \( 3: 2: 1 . \) Its volume is \( 1296 m^{3} \)
Find its height.
\( \mathbf{A} \cdot 6 m \)
B. \( 0.8 m \)
\( c .6 \mathrm{cm} \)
D. None of these
Subject: Chemistry
The reaction of white phosphorus with
aqueous \( N a O H \) gives phosphine along with another phosphorus containing compound. The reaction type, the oxidation states of phosphorus in phosphine and the other product are, respectively:
A. redox reaction; -3 and -5
B. redox reaction; +3 and +5
c. disproportionation reaction; -3 and +1
D. disproportionation reaction; -3 and +3
Subject: Chemistry
The \( p K_{a} \) values for the three ionizable
groups \( X, Y \) and \( Z \) of glutamic acid \( 4.3,9.7 a n d 2.2 \) respectively.
The isoelectric point for the amino acid
is:
\[
\begin{aligned}
\mathrm{H} \mathrm{O}_{2} \mathrm{C}-\mathrm{CH}_{2} &-\mathrm{CH}-\mathrm{CO}_{2} \mathrm{H} \\
\mathrm{X} &+\mathrm{NH}_{3}
\end{aligned}
\]
A . 7.00
B. 3.25
c. 4.95
D. 5.95
Subject: Physics
A permanent magnet moving coil gives full scale deflection at \( 40 \mathrm{mV} \) potential difference and 8 mA current. What will
be the required series resistance when it is used as voltmeter of range \( 0200 \mathrm{V} ? \)
A . 19556 ohm
B. 20163 ohm
\( c \cdot 23884 \) ohm
D. 24995 ohm
Subject: Physics
If the glancing angle of incidence is \( 50^{\circ} \) then calculate the angle between the
incident ray and the reflected ray:
A \( .50^{\circ} \)
B . \( 100^{\circ} \)
\( \mathrm{c} \cdot 130^{\circ} \)
D. \( 80^{\circ} \)
Subject: Chemistry
Consider the below diagram of heat
transfer and work transfer for a system.
What will be the first law equation for
the below system?
A \( \cdot(Q 1-Q 2)=E(W 2+W 3+W 1) \)
B . \( (Q 1+Q 2)=E+(W 2+W 3+W 1) \)
c. \( (Q 1-Q 2)=E+(W 2+W 3-W 1) \)
D. None of the above
Subject: Physics
Cathode rays of velocity \( 10^{6} m s^{-1} \)
describe an approximate circular path of radius \( 1 \mathrm{m} \) in an electric field of
\( 400 V c m^{-1} . \) If the velocity of cathode
rays is doubled, the value of the electric
field needed so that the rays describe the same circular path is
A. \( 1200 V c m^{-1} \)
B. \( 100 \mathrm{Vcm}^{-1} \)
c. \( 800 V c m^{-1} \)
D. \( 1600 V c m^{-1} \)
Subject: Physics
When a wire of length \( 10 \mathrm{m} \) is subjected
to a force of \( 100 N \) along its length, the
lateral strain produced is \( 0.01 \times 10^{-3} \)
The Poisson's ratio was found to be 0.4
If the area of cross-section of wire is
\( 0.025 m^{2}, \) its Young's modulus is:
A \( \cdot 1.6 \times 10^{8} N / m^{2} \)
B . \( 2.5 \times 10^{10} N / m^{2} \)
c. \( 12.5 \times 10^{11} N / m^{2} \)
D. \( 16 \times 10^{10} N / m^{2} \)
Subject: Maths
A point is moving along the curve \( y^{3}= \) \( 27 x \). The interval in which the abscissa
changes at slower rate than ordinate, is
A \( \cdot(-3,3) \)
B \( \cdot(-\infty, \infty) \)
c. (-1,1)
D. \( (-\infty,-3) \cup(3, \infty) \)
Subject: Physics
Two stones are thrown up
simultaneously from the edge of a cliff
\( 200 \mathrm{m} \) high with initial speeds of \( 15 \mathrm{m} \)
\( s^{-1} \) and \( 30 \mathrm{m} s^{-1} \) respectively. The time
variation of the relative position of the
second stone with respect to the first as
shown in the figure. The equation of the
liner part is
\( \mathbf{A} \cdot x_{2}-x_{1}=50 \mathrm{t} \)
B \( \cdot x_{2}-x_{1}=10 t \)
\( \mathbf{c} \cdot x_{2}-x_{1}=15 t \)
D. \( x_{2}-x_{1}=20 t \)
Subject: Chemistry
In an experiment, 18.04 g of mannitol were dissolved in 100 g of water. The vapour pressure of water was lowered by \( 0.309 \mathrm{mm} \) Hg from \( 17.535 \mathrm{mm} \) Hg.
Calculate the molar mass of manitol.
A. \( 150.0 \mathrm{g} / \mathrm{mol} \)
в. \( 184.3 \mathrm{g} / \mathrm{mol} \)
c. \( 140.4 \mathrm{g} / \mathrm{mol} \)
D. 123.21 g/mol
Subject: Chemistry
Which of the folowing is incorrect?
A. Nitric oxide depletes ozone layer in upper atmosphere
B. \( O_{3} \) is a powerful oxidising agent
C . Acidic strength increases from \( H_{2} \) Te to \( H_{2} O \)
D. \( S O_{2} \) is redusing agent while \( T e O_{2} \) is an oxidising
agent