AkshitPareek2004/jee-question-analyzer-data huggingface dataset:
Subject: Chemistry
Which of the following complexes will give a white precipitate on treatment with a solution of barium nitrate?
\( \mathbf{A} \cdot\left[\operatorname{Cr}\left(N H_{3}\right)_{4} S O_{4}\right] C l \)
в. \( \left[\operatorname{Co}\left(N H_{3}\right)_{4} C l_{2}\right] N O_{2} \)
c. \( \left[\operatorname{Cr}\left(N H_{3}\right)_{4} C l_{2}\right] S O_{4} \)
D. \( \left[C r C l_{2}\left(H_{2} O\right)_{4}\right] C l \)
Subject: Maths
Let \( \boldsymbol{f}(\boldsymbol{x}) \) be a polynomial function of degree 2 and \( f(x)>0 \) for all \( x \in R \) If \( \boldsymbol{g}(\boldsymbol{x})=\boldsymbol{f}(\boldsymbol{x})+\boldsymbol{f}^{\prime}(\boldsymbol{x})+\boldsymbol{f}^{\prime \prime}(\boldsymbol{x}), \) then for
any \( \boldsymbol{x} \)
A \( . g(x)<0 \)
В \( . g(x)>0 \)
\( \mathbf{c} \cdot g(x)=0 \)
D. \( g(x) \geq 0 \)
Subject: Physics
A steamer is going downstream
overcome a raft point \( A .2 h r \) later it
turned back and after some time
passed the raft at a distance \( 4 \mathrm{km} \) from point \( A . \) The speed of the river is
A. \( 1 \mathrm{km} / \mathrm{h} \)
B. \( 2 \mathrm{km} / \mathrm{h} \)
\( \mathrm{c} .3 \mathrm{km} / \mathrm{h} \)
D. \( 4 \mathrm{km} / \mathrm{h} \)
Subject: Chemistry
Assertion
The change in internal energy and change in heat enthalpy does not depend upon the path by which changes are brought in.
Reason
Both \( \Delta U \) and \( \Delta H \) are path independent as U and H are state functions.
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
When a body of mass \( m_{1} \) moving with uniform velocity \( 40 m s^{-1} \) collides with
another body of mass \( m_{2} \) at rest, then the two together begin to move with
uniform velocity of \( 30 m s^{-1} . \) The ratio of the mass (i.e., \( \frac{m_{1}}{m_{2}} \) ) of the two bodies will be
A .1: 3
в. 3: 1
c. 1: 1.33
D. 1: 0.75
Subject: Chemistry
The products are :
Products \( P, Q, \) and \( R \) are:
\( (\mathrm{I}) \)
A. \( P \Rightarrow I, Q \) and \( R \Rightarrow \| \)
B. P and Q both I and II, \( R \Rightarrow \) II
C. \( P \) is both I and II, \( Q \) and \( R \Rightarrow 1 \)
D. \( P, Q, \) and \( R \Rightarrow A \| \) II
Subject: Physics
A radioactive nucleus with decay
constant \( 0.5 / s \) is being produced at a constant rate of 100 nuclei/s. If at \( t= \)
0 there were no nuclei, the time when
there are 50 nuclei is
A . \( 1 s \)
B. \( 2 \ln \left(\frac{4}{3}\right) \) s
\( c \cdot \ln 2 \)
D. \( \ln \left(\frac{4}{3}\right) \) s
Subject: Maths
If the quotient of \( x^{4}-11 x^{3}+44 x^{2}- \)
\( 76 x+48 . \) When divided by \( \left(x^{2}-7 x+\right. \)
12) is \( A x^{2}+B x+C \), then the
descending order of \( A, B, C \) is
A. \( A, B, C \)
в. \( B, C, A \)
c. \( A, C, B \)
D. \( C, A, B \)
Subject: Physics
toppr
Q Type your question
the graph shown on the right above.
What will be the average current that
flows through the coil during time T?
A \( \cdot V_{0} T / 2 L \)
\( (\mathrm{A}) \)
в. \( V_{0} T / 6 L \)
\( (\mathrm{B}) \)
\( \mathbf{c} \cdot 3 V_{0} T / 2 L \)
\( (C) \)
D. \( V_{0} T / L \)
\( (\mathrm{D}) \)
Subject: Chemistry
If the solubility of lithium sodium
hexafluoridoaluminate, \( \boldsymbol{L} \boldsymbol{i}_{3} \boldsymbol{N} \boldsymbol{a}_{3}\left[\boldsymbol{A l} \boldsymbol{F}_{6}\right]_{2} \)
is 's' \( m o l L^{-1}, \) its solubility product is:
(Assume no ionisation of \( \left.\left[A i F_{6}\right]^{3-}\right) \)
A . \( 18 s^{3} \)
B. \( 186624 s^{8} \)
\( \mathbf{c} \cdot 1458 s^{8} \)
D. \( 2916 s^{8} \)
Subject: Chemistry
Liquid benzene burns in oxygen
according to:
\( 2 C_{6} H_{6}+15 O_{2} \rightarrow 12 C O_{2}+6 H_{2} O \)
If density of liquid benzene is \( 0.88 \mathrm{g} / \mathrm{cc} \)
what volume of \( \boldsymbol{O}_{2} \) at \( \mathrm{STP} \) is needed to
complete the combustion of 39 cc of liquid benzene?
A. 11.2 litre
B. 74 litre
c. \( 0.074 \mathrm{m}^{3} \)
D. 37 \( d m^{3} \)
Subject: Physics
An ideal battery of \( 4 V \) and resistance \( R \) are connected in series in the primary
circuit of a potentiometer of length \( 1 \boldsymbol{m} \) and resistance \( 5 \Omega . \) The value of \( R, \) to
given a potential difference of \( 5 m V \)
\( \operatorname{across} 10 c m \) of potentiometer wire is:
\( \mathbf{A} \cdot 490 \Omega \)
в. \( 480 \Omega \)
c. \( 395 \Omega \)
D. \( 495 \Omega \)
Subject: Biology
consider the following statements each with one or two blanks.
(i) The ascending limb of loop of Henle is impermeable to (1) but allows transport of (2)
(ii) (3) and
(4) play a significant role in producing a concentrated urine.
(iii) A fall in glomerular blood flow/glomerular blood pressure/GFR can activate the JG cells to release (5)
Which one of the following options correctly fills the blanks in any two of the statements?
A. (1)-water, (2)-electrolytes, (5)-renin
B. (3)-Henle's loop, (4)-vasa recta,
(5)-angiotensin
c. (1)-electrolytes,
(2)-water,
\( (3)- \) РСТ, \( (4)- \) DCT
D. (3)-Henle's loop, (4)-vasa recta, (5)-angiotensinogen
Subject: Physics
Figure shows some of the electric field
lines corresponding to an electric field.
The figure suggests that:
A \( \cdot E_{A}>E_{B}>E_{C} \)
B . \( E_{A}=E_{B}=E_{O} \)
\( \mathbf{c} \cdot E_{A}=E_{C}>E_{B} \)
D. \( E_{A}=E_{C}<E_{B} \)
Subject: Maths
Let \( O B=\hat{i}+2 \hat{j}+2 \hat{k} \) and \( O A=4 \hat{i}+ \)
\( 2 \hat{j}+2 \hat{k} . \) The distance of the point \( B \) from the straight line passing through \( A \) and parallel to the vector \( 2 \hat{i}+3 \hat{j}+ \) \( 6 \hat{k} \) is
A \( \cdot \frac{7 \sqrt{5}}{9} \)
в. \( \frac{5 \sqrt{7}}{9} \)
c. \( \frac{3 \sqrt{5}}{7} \)
D. \( \frac{9 \sqrt{5}}{7} \)
E \( \cdot \frac{9 \sqrt{7}}{5} \)
Subject: Chemistry
In acid buffer solution \( (\mathrm{pH}=4.4), \) the ratio of concentrations of acid to salt
is \( 2: 1 . \) The value of dissociation
constant of weak acid may be:
A \( \cdot 1.8 \times 10^{-4} \)
В. \( 2 \times 10^{-7} \)
c \( .4 \times 10^{-5} \)
D. \( 2 \times 10^{-5} \)
Subject: Biology
Assertion
Double circulation is incomplete in amphibians and reptiles
Reason
Unlike in birds and mammals, in amphibian and reptiles, the left atrium receives oxygenated blood and right atrium receives deoxygenated blood.
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: Maths
For three number \( a, b, c \) product of the average of the number \( a^{2}, b^{2}, c^{2} \) and \( \frac{1}{a^{2}} \) \( \frac{1}{b^{2}}, \frac{1}{c^{2}} \) can not be less than
\( A \)
B. 3
\( c \cdot 9 \)
D. none of these
Subject: Maths
The function 'f' is defined by \( f(x)= \)
\( \boldsymbol{x}^{p}(\mathbf{1}-\boldsymbol{x})^{\boldsymbol{q}} \) for all \( \boldsymbol{x} \in \boldsymbol{R}, \) where \( \mathbf{p}, \boldsymbol{q} \) are
positive integers, has a maximum value, for x equal to
A. \( \frac{p q}{p+q} \)
B.
c. \( \frac{p}{p+q} \)
D. 0
Subject: Chemistry
toppr LoGın
Q Type your question
enthalpy \( \left(\text { in } \mathrm{kJ} \mathrm{mol}^{-1}\right) \) of a few elements
are given below:
\begin{tabular}{llll} 
Elements & \( \boldsymbol{\Delta} \boldsymbol{H}_{1} \) & \( \boldsymbol{\Delta} \boldsymbol{H}_{2} \) & \( \boldsymbol{\Delta}_{e g} \mathbf{H} \) \\
1 & 520 & 7300 & -60 \\
11 & 419 & 3051 & -48 \\
\hline 111 & 1681 & 3374 & -328 \\
\hline \( \mathrm{IV} \) & 1008 & 1846 & -295 \\
\( \mathrm{V} \) & 2372 & 5251 & +48 \\
\hline \( \mathrm{V} \) & 738 & 1451 & -40
\end{tabular} Which of the above elements is likely to
be:
(a) the least reactive element,
(b) the most reactive metal,
(c) the most reactive non-metal,
(d) the least reactive non-metal,
(e) the metal which can form a stable
binary halide of the formula \( \mathrm{M} \mathrm{X}_{2} \)
(X=halogen) and
(f) the metal which can form a
predominantly stable covalent halide of
th \( \cdot \) mula MX (X=halogen)?
Subject: Physics
The correct formula of critical velocity
\( \left(V_{c}\right) \) is :
A \( \cdot V_{c}=\frac{k \eta d}{r} \)
B. \( v_{c}=\frac{k \eta}{d r} \)
\( ^{\mathrm{C}} \cdot_{V_{c}}=\frac{d r}{k \eta} \)
D. \( V_{c}=\frac{r \eta}{d k} \)
Subject: Maths
If \( \boldsymbol{f}=\{(\boldsymbol{4}, \boldsymbol{5}),(\boldsymbol{5}, \boldsymbol{6}),(\boldsymbol{6},-\boldsymbol{4})\} \) and \( \boldsymbol{g}= \)
\( \{(\boldsymbol{4},-\boldsymbol{4}),(\boldsymbol{6}, \boldsymbol{5}),(\boldsymbol{8}, \boldsymbol{5})\} . \) Then \( |\boldsymbol{f}-\boldsymbol{g}|=? \)
Subject: Maths
What is the area of the circle whose
equation is \( (x-3)^{2}+(y+5)^{2}=18 ? \)
\( \mathbf{A} \cdot 9 \pi \)
B. \( 18 \pi \)
c. \( 72 \pi \)
D. \( 81 \pi \)
E . \( 324 \pi \)
Subject: Chemistry
Which of the following is anodic
reaction:
\( \mathbf{A} \cdot S O_{4}^{2-}+H_{2} O \rightarrow H_{2} S O_{4}+1 / 2 O_{2}+2 e^{-} \)
\( \mathbf{B} \cdot H^{\oplus}+e^{-} \rightarrow 1 / 2 H_{2} \)
\( \mathbf{C} \cdot A g^{\oplus}+e^{-} \rightarrow A g \)
D. None of above
Subject: Chemistry
Which of the following statements is
correct:
\( \mathbf{A} \cdot S F_{6} \) does not react with water
B. \( O F_{6} \) is \( d^{2} S p^{3} \) -hybridized
\( \mathrm{C} \cdot S_{2} \mathrm{O}_{3}^{2-} \) is a linear ion
D. There is no \( \pi \) -bonding in \( S O_{4}^{2-} \)
Subject: Physics
Consider a long conductor, the middle of
which is earthed. If the potential
difference across the two ends of the
conductor is \( 220 \mathrm{V} \), then what is the
potential at the ends and the middle
point?
A. \( 220 V \) all over the conductor
B. \( 110 V \) and \( -110 V \) at ends and \( 0 V \) at the mid point
C. \( 0 V \) at ends and \( 220 V \) at midpoint
D. \( -220 \mathrm{V} \) all over the conductor
Subject: Physics
n figure, \( A B C E F G A \) is a square
conducting frame of side \( 2 m \) and
resistance \( 1 \Omega m^{-1} \). A uniform
magnetic field \( B \) is applied
perpendicular to the plane and pointing inward. It increases with time at a
constant rate of \( 10 T s^{-1} \). Find the rate
at which heat is produced in the circuit, \( A B=B C=C D=B H \)
Subject: Chemistry
True statements for the chemical
reaction of the formation of lithium
oxide is:
\( 4 L i(s)+O_{2}(g) \rightarrow 2 L i_{2} O(s) \)
A. lithium metal is the oxidizing agent
B. oxygen gas is the reducing agent
c. lithium is oxidized
D. oxygen is oxidized
E. oxygen loses two electrons to become \( O^{-2} \) ion
Subject: Chemistry
Assertion
Rate of nitration is \( C_{6} H_{6} \simeq C_{6} D_{6} \simeq \)
\( \boldsymbol{C}_{\boldsymbol{6}} \boldsymbol{T}_{\boldsymbol{6}} \)
Reason
Formation of intermediate is rate
determining step in nitration of
benzene, not the breaking of \( \boldsymbol{C}-\boldsymbol{H} \) or
\( C-D \) bond
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
If \( (x+i y)(2-3 i)=4+i \) then \( (x, y)= \)
A. \( \left(1, \frac{1}{13}\right) \)
B \( \cdot\left(-\frac{5}{13}, \frac{14}{13}\right) \)
c. \( \left(\frac{5}{13}, \frac{14}{13}\right) \)
D. \( \left(-\frac{5}{13},-\frac{14}{13}\right) \)
Subject: Chemistry
The incorrect statement among the
following is :
\( \mathbf{A} \cdot C_{60} \) is an allotropic form of carbon
B. \( O_{3} \) is an allotropic form of oxygen
\( \mathrm{C} \cdot S_{8} \) is the only allotropic form of sulphur
D. Red phosphorus is more stable in air than white phosphorus
Subject: Maths
If \( \boldsymbol{A}=\left[\begin{array}{ll}\mathbf{1} & \mathbf{1} \\ \mathbf{2} & \mathbf{2}\end{array}\right], \boldsymbol{B}=\left[\begin{array}{ll}\mathbf{1} & \mathbf{1} \\ \mathbf{3} & \mathbf{4}\end{array}\right] \) then find
\( \boldsymbol{A B} \)
Subject: Chemistry
For a given reaction, \( \boldsymbol{H}_{2} \boldsymbol{O}(l) \rightleftharpoons \)
\( H_{2} O(s) a t 0^{\circ} C \) and 1 bar, which of the
following is true?
A. \( \Delta G=0 \)
в. \( \Delta S=0 \)
c. \( \Delta H=0 \)
D. \( \Delta U=0 \)
Subject: Chemistry
Assertion: When an electric current is
passed through the copper sulphate electrolyte, the impure copper anode gradually dissolve and pure copper is deposited on the cathode. Reason: Pure metals are deposited in electroplating techniques.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
c. Assertion is true but Reason is false
D. Assertion is false but Reason is true
E. Both Assertion and Reason are false
Subject: Chemistry
Suggest a reason for each observation
given below.
i) In fireworks, powdered magnesium is used rather than magnesium ribbon
ii) Zinc and dilute \( H_{2} S O_{4} \) react much
more quickly when a few drops of copper sulphate solution are added
iii) The reaction between magnesium carbonate and dilute hydrochloric acid speeds up when some concentrated
\( H C l \) is added.
Subject: Chemistry
Explain why the standard reduction
potentials for \( C u^{2+} \longrightarrow C u^{+} \) and
\( C u^{+} \longrightarrow C u \) are +0.15 and +0.50 volt
respectively, yet that for \( \boldsymbol{C u}^{2} \longrightarrow \boldsymbol{C u} \) is
+0.34 volt.
Subject: Maths
The sum of the series \( \frac{5}{13}+\frac{55}{13^{2}}+\frac{555}{13^{3}}+ \)
\( \dots \dots \infty \) is
\( \mathbf{A} \cdot \frac{65}{36} \)
B. \( \frac{65}{32} \)
\( \mathbf{C} \cdot \frac{25}{36} \)
D. none of these
Subject: Maths
A particular work can be completed by 6 men and 6 women in 24 days; whereas the same work can be completed by 8 men and 12 women in 15 days, according to the amount of work done one man is equivalent to how many women?
A \( \cdot_{\frac{1}{2}} \) women
в. \( 5 \frac{1}{3} \) women
\( ^{\mathrm{c}} \cdot_{5} \frac{2}{3} \) women
D. \( \frac{3}{2} \) women
Subject: Chemistry
Which of the following is a redox
reaction?
\( \mathbf{A} \cdot C a C O_{3} \rightarrow C a O+C O_{2} \)
\( \mathbf{B} \cdot H_{2}+C l_{2} \rightarrow 2 H C l \)
\( \mathbf{c} \cdot C a O+H C l \rightarrow C a C l_{2}+H_{2} O \)
\( \mathbf{D} \cdot N a O H+H C l \rightarrow N a C l+H_{2} O \)
Subject: Maths
If \( \sec A=\operatorname{cosec} B=\frac{5}{3}, \) then the value
of \( (\boldsymbol{A}+\boldsymbol{B}) \) is equal to
\( \mathbf{A} \cdot \mathbf{0} \)
B. \( 90^{\circ} \)
\( \mathbf{c} \cdot<90^{\circ} \)
\( \mathbf{D} \cdot>90^{\circ} \)
Subject: Physics
Q Type your question-
-
liquid of density \( \rho=1000 k g / m^{3} \) and
refractive index \( \mu=4 / 3 . \) Afish is at rest
at the bottom of the container and a
humming bird is at rest in air at some distance above the surface of the liquid.
At \( t=t_{0}, \) the level of the liquid is \( h= \)
\( \frac{3}{5} m \) as shown in the figure. Neglect
viscous effects and take \( g=10 m / s^{2} \)
Q43. What is the speed of top surface of liquid in the container at the given instant:
\( A \)
\[
\frac{1}{2} \mathrm{m} / \mathrm{s}
\]
B. \( 2 \mathrm{m} / \mathrm{s} \)
\( c \cdot 3 m / s \)
\( D \)
\[
\frac{1}{4} m / s
\]
Subject: Physics
A body covers 26,28,30 and 32 meters in \( 10^{t h}, 11^{t h}, 12^{t h} \) and \( 13^{t h} \) seconds
respectively. The body starts
A. from rest and moves with uniform velocity
B. from rest and moves with uniform acceleration
c. with an initial velocity and moves with uniform acceleration
D. with an initial velocity and moves with uniform velocity
Subject: Maths
If \( f(x)=\sin ^{-1}\left\{\frac{\sqrt{3}}{2} x-\frac{1}{2} \sqrt{1-x^{2}}\right\} \)
\( -\frac{1}{2} \leq x \leq 1, \) then \( f(x) \) is equal to :
\( ^{\mathbf{A}} \cdot \sin ^{-1}\left(\frac{1}{2}\right)-\sin ^{-1}(x) \)
B \( \cdot \sin ^{-1} x-\frac{\pi}{6} \)
\( c \cdot \sin ^{-1} x+\frac{\pi}{6} \)
D. none of these
Subject: Maths
\( \left(1-x y+x^{2} y^{2}\right) d x=x^{2} d y \)
A. \( _{y}=\frac{1}{x} \tan (\ln |c y|) \)
B. \( _{x}=\frac{1}{y} \tan (\ln |c x|) \)
c. \( x=\frac{1}{y} \cot (\ln |c y|) \)
D. \( y=\frac{1}{x} \cot (\ln |c x|) \)
Subject: Physics
What is the maximum speed at which a railway carriage can move without toppling over along a curve of radius \( R=200 m \) if the distance from the
centre of gravity of the carriage to the level of the rails is \( h=1.0 m \), the
distance between the rails is \( h=1.0 m \)
the distance between the rails is \( l= \)
\( 2.0 m \) and the rails are laid horizontally?
(Take \( \boldsymbol{g}=\mathbf{1 0 m} / \boldsymbol{s}^{2} \) )
A \( \cdot 11.18 m s^{-1} \)
B. \( 22.36 m s^{-1} \)
c. \( 44.72 m s^{-1} \)
D. \( 74 m s^{-1} \)
Subject: Chemistry
18 g glucose \( \left(C_{6} H_{12} O_{6}\right) \) is added to
\( 178.2 \mathrm{g} \) of water. The vapour pressure of this aqueous solution at \( 100^{0} C \) in torr
is:
A . 7.60
B. 76.00
c. 752.40
D. 759.00
Subject: Biology
Carbohydrates are commonly found as
starch in plant storage organs.Which of the following five properties of starch makes it useful as a storage material?
(A) Easily translocated
(B) Chemically non-reactive
(C) Easily digested by animals
(D) Osmotically inactive
(E) Synthesized during photosynthesis
The useful proeprties are
\( A \cdot(A),(C) \) and (E)
B. (A) and (E)
c. (B) and (C)
D. (B) and (D)
Subject: Physics
A sinusoidal voltage of peak value \( 293 \mathrm{V} \) and frequency \( 50 \mathrm{Hz} \) is applied to a series LCR circuit in which \( \mathrm{R}=6 \Omega, \mathrm{L} \)
\( =25 \mathrm{mH} \) and \( \mathrm{C}=750 \mu \mathrm{F} \). The impedance
of the circuit is:
A. \( 7.0 \Omega \)
B. \( 8.9 \Omega \)
\( c \cdot 9.9 \Omega \)
D. 10.0 \( \Omega \)
Subject: Physics
A power transmission line feeds input power \( t 2300 \mathrm{V} \) to a step-down transformer with its primary windings having 4000 turns. The output power is delivered at \( 230 \mathrm{V} \) by the transformer. If the current in the primary of the transformer is \( 5 \mathrm{A} \) and its efficiency is \( 90 \%, \) the output current would be :
A . 25 A
B. 50 A
\( c .35 \mathrm{A} \)
D. 45 A
Subject: Physics
A horizontal magnetic field B is produced across a narrow gap between the two square iron pole pieces.
closed square loop of side a, mass \( \mathrm{m} \)
and resistance \( R \) is allowed to fall with
the top of the loop in the field. The loop
attains a terminal velocity equal to:
A \( \cdot \frac{R m g}{B^{2} a^{2}} \)
B. \( \frac{\mu_{0}}{4 \pi} \frac{R m g}{B a^{2}} \)
c. \( \frac{m g B}{R a^{2}} \)
D. \( \frac{\mu_{0}}{4 \pi} \frac{R m B}{B a^{2}} \)
Subject: Physics
The observed wavelength of light
coming from a distant galaxy is found
to be increased by \( 0.5 \% \) as compared
with that coming from a terrestrial
source. The galaxy is.
A. Stationary with respect t to the earth
B. Approching the earth with velocity of light
C. Receding from the earth with velocity of light
D. Receding from the earth with a velocity equal to \( 1.5 \times \) \( 10^{6} \mathrm{m} / \mathrm{s} \)
Subject: Biology
What is denoted by \( X \) and \( Y \) in the given
graph?
A. \( x \) -Activation energy without enzyme; Y-Activation energy with enzyme
B. X-Activation energy with enzyme; Y-Activation energy without enzyme.
c. \( x \) -substrate concentration with enzyme; \( Y \) - Substrate concentration without enzyme.
D. X-Substrate concentration without enzyme; YSubstrate concentration with enzyme.
Subject: Physics
In a single slit diffraction pattern,
\( (a) \)
the intensity \( I, \) at a point where the total phase difference between the
wavelets from top to bottom of the slit is
66 rad.
(b) If this point is \( 7^{0} \) away from the central maxima. Find the width of
the slit. Given: \( \lambda=600 n m \)
Subject: Physics
In the given figure a piano-concave lens is placed on a paper on which a flower is drawn. how far above its actual position
does the flower appear to be?
\( A \cdot 10 \mathrm{cm} \)
B. \( 15 \mathrm{cm} \)
\( c \cdot 50 \mathrm{cm} \)
D. none of these
Subject: Chemistry
The complex ion \( \left[\boldsymbol{C o}\left(\boldsymbol{N} \boldsymbol{H}_{3}\right)_{6}\right]^{+2} \) is
readily oxidized to \( \left[\boldsymbol{C o}\left(\boldsymbol{N} \boldsymbol{H}_{3}\right)_{6}\right]^{+3} \)
A . True
B. False
Subject: Chemistry
The reagent \( \boldsymbol{X} \) used for the following reaction is:
\[
\mathbf{R}-\mathbf{C}=\mathbf{C R}^{\prime}+\mathbf{H}_{2} \stackrel{\mathbf{X}}{\longrightarrow} \underset{\mathbf{H}^{\prime}}{\mathbf{C}} \mathbf{C}=\mathbf{C}_{\mathbf{H}}^{\prime \mathbf{R}^{\prime}}
\]
A . \( N i \)
в. \( P d / C \)
c. LiAlH\( _{4} \)
D. \( N a / \)Liquid \( N H_{3} \)
Subject: Chemistry
\( X e F_{6} \) is hydrolysed to \( X e O_{3} \) as:
\( \boldsymbol{X} \boldsymbol{e} \boldsymbol{F}_{6}+\boldsymbol{H}_{2} \boldsymbol{O} \longrightarrow \ldots \ldots \ldots(\boldsymbol{I}) \)
A \( \cdot I: X e O F_{4} \)
в. \( I: X e_{2} O_{3} F_{6} \)
c. \( I: X e O_{2} F_{2} \)
D. none of these
Subject: Physics
What is the pressure drop (in \( \mathrm{mm} \) Hg) in the blood as it passes through a capillary \( 1 \mathrm{mm} \) long and \( 2 \mu m \) in radius if the speed of the blood through the centre of the capillary is \( 0.66 \mathrm{mm} / \mathrm{s} \) ? (The viscosity of whole blood is \( 4 \times \) \( 10^{-3} \) poise
Subject: Maths
There are \( x^{4}+57 x+15 \) pens to be
distributed in a class of \( x^{2}+4 x+2 \)
students. Each student should get the minimum possible number of pens. Find the number of pens received by each student and the number of pens
left undistributed \( (\boldsymbol{x} \epsilon \boldsymbol{N}) \)
в. \( 9 x-15 \)
c. \( 9 x-20 \)
D. \( 9 x+13 \)
Subject: Physics
Three iron pieces \( A, B, C \) are taken. \( B \) is coated with zinc and the coating is
worn away partially. \( C \) is coated with tin
and the coating is worn away partially. Explain the rate at which \( \boldsymbol{A}, \boldsymbol{B}, \boldsymbol{C} \)
undergo rusting on exposure to air. Give
reason.
Subject: Maths
\( \operatorname{Let} \tan ^{-1} y=\tan ^{-1} x+ \)
\( \tan ^{-1}\left(\frac{2 x}{1-x^{2}}\right) \) where \( |x|<\frac{1}{\sqrt{3}} . \) Then
a value of y is
A \( \cdot \frac{3 x-x^{3}}{1-3 x^{2}} \)
В. \( \frac{3 x+x^{3}}{1-3 x^{2}} \)
c. \( \frac{3 x+x^{3}}{1+3 x^{2}} \)
D. \( \frac{3 x-x^{3}}{1+3 x^{2}} \)
Subject: Physics
Two point charges \( +8 q \) and \( -2 q \) are located at \( x=0 \) and \( x=L \) respectively. The location of a point on the \( x \) axis at which the net electric field due to these two
point charge is zero is -
A. 2
B. L/4
\( c \cdot 8 L \)
D. 4 L
Subject: Maths
ff \( \frac{\mathbf{3 x}+\mathbf{4}}{(x+1)^{2}(x-1)}=\frac{A}{x-1}+\frac{B}{x+1}+ \)
\( \frac{C}{(x+1)^{2}}, \) then \( C= \)
A. \( -\frac{1}{2} \)
B. \( -\frac{1}{4} \)
\( c \cdot-\frac{7}{4} \)
D. \( -\frac{1}{4} \)
Subject: Physics
Assertion: The reaction; \( _{1} \boldsymbol{H}^{2}+_{0} \boldsymbol{n}^{1} \rightarrow \)
\( _{2} H e^{4}+_{0} n^{1} \) will not happen
Reason: The equation given is not balanced.
A. Both Assertion and Reason are true and Reason is the correct explanation of Assertion
B. Both Assertion and Reason are true but Reason is not the correct explanation of Assertion
c. Assertion is true but Reason is false
D. Assertion is false but Reason is true
E. Both Assertion and Reason are false
Subject: Maths
In the Argand's plane, the locus of \( z(\neq \)
1) such that
\( \arg \left\{\frac{3}{2}\left(\frac{2 z^{2}-5 z+3}{3 z^{2}-z-2}\right)\right\}=\frac{2 \pi}{3} i s \)
A. a hyperbola with the directrices at \( z=-3 / 2 \) and \( z= \)
\( -2 / 3 \)
B. an ellipse with the directrices at \( z=3 / 2 \) and \( z=2 / 3 \)
c. a segment of a circle subtending angle \( \frac{2 \pi}{3} \) on arc between points \( z=-3 / 2 \) and \( z=2 / 3 \) lying below real axis.
D. a segment of a circle subtending angle \( \frac{2 \pi}{3} \) on arc
between points \( z=3 / 2 \) and \( z=-2 / 3 \) lying above real axis.