Which of the following orbitals have same value of $(\mathrm{n}+l)$ as that of 3 d orbital?

What is the number of moles of sulfur atoms present in n mole molecules of mustard gas?

Which of the following is a tricarboxylic acid?

What is the value of slope, if $\log _{10} \mathrm{~K}$ (y-axis) is plotted versus $1 / \mathrm{T}$ ( $x$-axis) for Arrh

Identify a compound having highest thermal stability.

Which among the following has highest basic strength?

Identify the nitrogen atom of purine base that bonds with $1^{\prime}$ carbon of ribose to form ribonucleoside?

The resistance of a conductivity cell of 0.1 M KCl solution is 120 ohm and conductivity is $1.64 \times 10^{-4} \mathrm{

What is the percentage of p-bromoanisole formed in the bromination of anisole with bromine in acetic acid?

Which of the following compounds contains chlorine in +5 oxidation state?

Which from following n mole molecules of carbohydrate contains 2 n mole molecules of galactose, $n$ moles of glucose and

 Calculate $\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$ of a monobasic acid if it is $0.04 \%$ dissociated in 0.05 M solut

Identify an aromatic, mixed, $3^{\circ}$ amine among the following compounds.

Which of the following changes occurs during the discharging of lead accumulator?

Identify false statement form following.

Which form following is a use of polyester fibres?

Calculate the solubility product of sparingly soluble salt BA at 300 K if its solubility is $9.1 \times 10^{-3} \mathrm{

Which of the following is a pair of dihydric phenols?

Which compound is used in medicine as barium meal for intestinal x-ray?

If 100 L gas is enclosed in a cylinder, absorbs 302.6 J of heat and expands to 200 L against constant external pressure

What is the molar mass of third member of homologous series if the molar mass of first member is 46 g ?

Idertify chiral molecule from following.

Which from following solids exhibits isotropic properties?

Which from following molecules is tetrahedral?

Which of the following equations is true for $8.8 \times 10^{-2} \mathrm{~kg}$ of carbon dioxide gas?

Identify thermosetting polymer from following.

What is the IUPAC name of following compound?

Which of the following is true for the value of $\Delta \mathrm{H}-\Delta \mathrm{U}$ at constant volume?

Which from following nanomaterials has two dimensions less than 100 nm ?

What is IUPAC name of the following compound?

Calculate the radius of an atom of metal if it forms simple cubic unit cell with edge length 380 pm.

Identify dispersed phase and dispersion medium in cheese. .tg {border-collapse:collapse;border-spacing:0;} .tg td{bord

How many moles of carbon atoms are present in 3.6 kg of carbon?

Calculate enthalpy change for following reaction. $$\mathrm{H}_2 \mathrm{C}=\mathrm{CH}_{2(\mathrm{~g})}+\mathrm{H}_{2(\

Identify the product 'B' in the following reaction. Ethylphenyl ketone $\xrightarrow{\mathrm{H}_2 \mathrm{~N}-\mathrm{NH

Which from following is NOT a lanthonoid element?

For the reaction, $A+3 B \longrightarrow 2 C$ rate of consumption of A is $1.4 \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~

Identify the major product obtained in the following reaction. Chlorobenzene $\xrightarrow[A \text { Anhydrous } \mathrm

What is EAN of Cu in $\left[\mathrm{Cu}\left(\mathrm{NH}_3\right)_4\right]^{2+}$ ?

Calculate the number of unit cells in 10.8 g metal $\left(\varrho a^3=7.2 \times 10^{-22} \mathrm{~g}\right)$

Calculate van't Hoff factor of 0.2 m aquesous solution of an electrolyte if it freezes at $-$0.7 K $\left[\mathrm{K}_{\m

What is momentum of a microscopic particle having de Broglie's wavelength 6.0 A? $$\left(\mathrm{h}=6.63 \times 10^{-34}

Which from following species acts as base ${ }^1$, according to Bronsted-Lowry theory? $$\mathrm{HCl}+\mathrm{NH}_3 \tex

Which of the following reactions represents Clemmensen reduction?

Which from following catalysts is used in the Haber's process for manufacture of ammonia?

In a first order reaction if concentartion of reactant drops from $0.8 \mathrm{~mol} \mathrm{~L}^{-1}$ to $0.4 \mathrm{~

Calculate the quantity of electricity required to liberate 0.1 mole of chlorine gas during electrolysis of molten sodium

What is IUPAC name of $\left(\mathrm{CH}_3\right)_4 \mathrm{C}$ ?

Find the total number of moles of donor atoms present in one mole trioxalatocobaltate(III) ion.

Calculate the molar mass of non volatile solute when 5 g of it is dissolved in 50 g solvent, boils at $119.6^{\circ} \ma

Two tangents drawn from $\mathrm{P}(1,7)$ to the circle $x^2+y^2=25$, touch the circle at Q and R respectively. The area

Let $X=\left[\begin{array}{l}\mathrm{a} \\ \mathrm{b} \\ \mathrm{c}\end{array}\right], \mathrm{A}=\left[\begin{array}{cc

Let in a Binomial distribution, consisting of 5 independent trials, probabilities of exactly 1 and 2 successes be 0.4096

The unit vector which is orthogonal to the vector $5 \hat{i}+2 \hat{j}+6 \hat{k}$ and is coplanar with the vectors $2 \h

The probability distribution of a random variable X is given by .tg {border-collapse:collapse;border-spacing:0;} .tg t

If $\int \frac{x+1}{\sqrt{2 x-1}} \mathrm{~d} x=\mathrm{f}(x) \sqrt{2 x-1}+\mathrm{c}$, (where c is a constant of integr

If $\alpha+\beta+\gamma=\pi$, then the expression $\sin ^2 \alpha+\sin ^2 \beta-\sin ^2 \gamma$ has the value

Let $\overline{\mathrm{A}}=2 \hat{\mathrm{i}}+\hat{\mathrm{k}}, \overline{\mathrm{B}}=\hat{\mathrm{i}}+\hat{\mathrm{j}}+

Distance between the parallel lines $\frac{x}{3}=\frac{y-1}{-2}=\frac{z}{1}$ and $\frac{x+4}{3}=\frac{y-3}{-2}=\frac{z+2

If $\mathrm{f}(x)=\log _{x^2}\left(\log _{\mathrm{e}} x\right)$, then $\mathrm{f}^{\prime}(x)$ at $x=\mathrm{e}$ is

A body cools according to Newton's law of cooling from $100^{\circ} \mathrm{C}$ to $60^{\circ} \mathrm{C}$ in 15 minutes

The value of k , for which the function $$\mathrm{f}(x)= \begin{cases}\left(\frac{4}{5}\right)^{\frac{\ln 4 x}{\tan 5 x}

The co-ordinates of a point on the curve $y=x \log x$ at which the normal is parallel to the line $2 x-2 y=3$ are

The value of $\mathrm{I}=\int_\limits{\sqrt{\log _{\mathrm{e}}}}^{\sqrt{\log _{\mathrm{e}} 3}} \frac{x \sin x^2}{\sin x^

The value of $\mathrm{I}=\int \frac{\mathrm{d} x}{x^2\left(x^4+1\right)^{\frac{3}{4}}}$ is

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consult

The value of C for which Mean value Theorem holds for the function $\mathrm{f}(x)=\log _e x$ on the interval $[1,3]$ is

The shaded region in the following figure is the solution set of the inequations

The diagonals of a parallelogram $A B C D$ are along the lines $x+3 y=4$ and $6 x-2 y=7$. Then ABCD must be a

If $x=\sec \theta-\cos \theta, y=\sec ^{10} \theta-\cos ^{10} \theta$ and $\left(x^2+4\right)\left(\frac{d y}{d x}\right

If $y=y(x)$ is the solution of the differential equation $\left(\frac{5+\mathrm{e}^x}{2+y}\right) \frac{\mathrm{d} y}{\m

The equation of the plane, passing through the mid point of the line segment of join of the points $\mathrm{P}(1,2,5)$ a

If C is a given non-zero scalar and $\overline{\mathrm{A}}$ and $\overline{\mathrm{B}}$ are given non-zero vectors such

If the equation $7 x^2-14 x y+p y^2-12 x+q y-4=0$ represents a pair of parallel lines then the value of $\sqrt{p^2+q^2-p

If $\mathrm{P}(x, y)$ denotes $\mathrm{z}=x+\mathrm{i} y x, y \in \mathbb{R}$ and $\mathrm{i}=\sqrt{-1}$ in Argand's pla

The general solution of $2 \sqrt{3} \cos ^2 \theta=\sin \theta$ is

If $(2+\sin x) \frac{\mathrm{d} y}{\mathrm{~d} x}+(y+1) \cos x=0$ and $y(0)=1$ then $y\left(\frac{\pi}{2}\right)$ is equ

The area of the triangle, whose vertices are $A \equiv(1,-1,2), B \equiv(2,1,-1)$ and $C \equiv(3,-1,2)$, is

The maximum value of the function $$f(x)=3 x^3-18 x^2+27 x-40$$ on the set $\mathrm{S}=\left\{x \in \mathbb{R} / x^2+30

$\tan \left(\frac{\pi}{4}+\frac{1}{2} \cos ^{-1}\left(\frac{\mathrm{a}}{\mathrm{b}}\right)\right)+\tan \left(\frac{\pi}{

Consider three observations $\mathrm{a}, \mathrm{b}$ and c such that $b=a+c$. If the standard deviation of $\mathrm{a}+2

The area (in sq. units) bounded by the curves $y=\sqrt{x}, 2 y-x+3=0, X$-axis and lying in the first quadrant is

If the lengths of the sides of triangle are 3,5,7, then the largest angle of the triangle is

If $\mathrm{f}(x)=\sin ^{-1}\left(\frac{2 \cdot 3^x}{1+9^x}\right)$, then $\mathrm{f}^{\prime}\left(\frac{1}{2}\right)$

$\int\left(\mathrm{f}(x) \mathrm{g}^{\prime \prime}(x)-\mathrm{f}^{\prime \prime}(x) \mathrm{g}(x)\right) \mathrm{d} x$

The value of $\tan \left(2 \tan ^{-1}\left(\frac{\sqrt{5}-1}{2}\right)\right)$ is

Number of different nine digit numbers, that can be formed from the digits in the number 223355888 by rearranging its di

If $\overline{\mathrm{a}}=\hat{\mathrm{i}}+2 \hat{\mathrm{j}}+3 \hat{\mathrm{k}}$ and $\bar{b}=\hat{i} \times(\bar{a} \t

The equation of normal to the curve $x=\theta+\sin \theta, y=1+\cos \theta$ at $\theta=\frac{\pi}{2}$ is

The equation of the line, through $\mathrm{A}(1,2,3)$ and perpendicular to the vector $2 \hat{\mathrm{i}}+\hat{\mathrm{j

$\int \frac{\log \sqrt{x}}{3 x} \mathrm{dx}$ is equal to

The negation of contrapositive of the statement $\mathrm{p} \rightarrow(\sim \mathrm{q} \wedge \mathrm{r})$ is

If $\mathrm{F}(x)=\left(\mathrm{f}\left(\frac{x}{2}\right)\right)^2+\left(\mathrm{g}\left(\frac{x}{2}\right)\right)^2$,

Let $P$ be the image of the point $(3,1,7)$ with respect to the plane $x-y+z=3$. Then the equation of the plane passing

Let $f(\theta)=\sin \left(\tan ^{-1}\left(\frac{\sin \theta}{\sqrt{\cos 2 \theta}}\right)\right)$, where $\frac{-\pi}{4}

The approximate value of $\sqrt[3]{0.026}$ is

The incentre of the triangle whose vertices are $P(0,3,0), Q(0,0,4)$ and $R(0,3,4)$ is

A random variable $X$ has the following probability distribution .tg {border-collapse:collapse;border-spacing:0;} .tg

$\lim _\limits{x \rightarrow 0} \frac{\sin \left(\pi \cos ^2 x\right)}{x^2}$ is equal to

Which one of the following is the pair of equivalent circuits?

A ferromagnetic material is heated above its curie temperature. The correct statement from the following is that

The number of photoelectrons emitted for light of frequency $v$ (higher than the threshold frequency $\left(v_0\right)$

The amount of work done in increasing the voltage across the plates of a capacitor form 5 V to 10 V is ' W '. The work d

Liquid drops are falling slowly one by one from vertical glass tube. The relation between the weight of a drop ' $w$ ',

A solid sphere of mass ' $m$ ', radius ' $R$ ', having moment of inertia about an axis passing through center of mass as

Rate of flow of heat through a cylindrical rod is ' $\mathrm{H}_1$ '. The temperature at the ends of the rod are ' $T_1$

A ball rises to surface at a constant velocity in liquid whose density is 4 times greater than that of the material of t

An air cored coil has self inductance of 0.1 H . A soft iron core of relative permeability 1000 is introduced and the nu

$\mathrm{L}=2 \mathrm{H}, \mathrm{C}=5 \mathrm{mF}$ and $\mathrm{R}=12 \Omega$ are connected in series to an a.c. genera

An electron of stationary Hydrogen atom passes from fifth energy level to ground level. The velocity that the atom acqui

A diffraction pattern is obtained using a beam of red light. If red light is replaced by blue light then

The magnetic energy in an inductor changes from maximum value to minimum value in 5 ms . When connected to an a.c. sourc

Which of the following statement is correct?

The potential barrier in p-n junction diode is due to

An inclined plane makes an angle of $30^{\circ}$ with the horizontal. A solid sphere rolling down this inclined plane fr

A fixed mass of gas at constant pressure occupies a volume ' V '. The gas undergoes a rise in temperature so that the r.

When cell of E.M.F. ' $E_1$ ' is connected to potentiometer wire, the balancing length is $l_1$. Another cell of E.M.F.

The logic gate combination circuit shown in the figure performs the logic function of

In an isobaric process

A concave mirror of focal length ' $f$ ' produces an image ' $n$ ' time the size of the object. If the image is real, th

A drum of radius ' $R$ ' full of liquid of density ' $d$ ' is rotated at angular velocity ' $\omega$ ' $\mathrm{rad} / \

In a vibrating string with fixed ends the waves are of type

The focal length of combination of lenses formed with lenses having power of +2.50 D and $-3.75$ D will be

The current flowing in a coil is 3 A and the power consumed is 108 W . If the a.c. source is of $120 \mathrm{~V}, 50 \ma

In the following circuit, the current flowing through zener diode is

The mass of the lift is 200 kg , when it ascends with an acceleration of $4 \mathrm{~m} / \mathrm{s}^2$ then the tension

The average translational kinetic energy of nitrogen (molar mass 28) molecules at a particular temperature is 0.042 eV .

A spring has a certain mass suspended from it and its period of vertical oscillations is $T_1$. The spring is now cut in

The intensity ratio of the maxima and minima in an interference pattern produced by two coherent sources of light is $9:

The coil and magnet are moved in the same direction with same speed (V). The induced e.m.f. is

A driver applies the brakes on seeing the red traffic signal 400 m ahead. At the time of applying brakes, the vehicle wa

The driver of a car travelling with a speed ' $V_1$ ' $\mathrm{m} / \mathrm{s}$ towards a wall sounds a siren of frequen

A stretched string is fixed at both ends. It is made to vibrate so that the total number of nodes formed in it is ' $x$

Three long, straight parallel wires carrying currents are arranged as shown. The wire C which carries a current of 5.0 A

Which of the following statements about the Bohr model of the hydrogen atom is false?

Two points separated by a distance of 0.1 mm can just be seen in microscope when light of wavelength $6000 \mathop A\lim

In the following circuit, the current $\mathrm{I_2}$ is

The first operation involved in a carnot cycle is

The gravitational potential energy required to raise a satellite of mass ' $m$ ' to height ' $h$ ' above the earth's sur

The core used in transformer and other electromagnetic devices is laminated to

The temperature at which r.m.s. velocity of hydrogen molecules is 4.5 times that of an oxygen molecule at $47^{\circ} \m

A sonometer wire is stretched by hanging a metal bob. The fundamental frequency of vibration of wire is ' $n_1$ '. When

For a body performing simple harmonic motion, its potential energy is $\mathrm{E}_{\mathrm{x}}$ at displacement x and $\

Charge on a parallel plate capacitor of capacity C is Q , the electric field intensity between its two plates separated

Four point charges each +q is placed on the circumference of a circle of diameter 2 d in such a way that they form a squ

A meter scale is supported on a wedge at its centre of gravity. A body of weight ' $w$ ' is suspended from the 20 cm mar

The stopping potential for a photelectric emission process is 10 V . The maximum kinetic energy of the electrons ejected

Cyclotron is used to

The displacement of a particle performing S.H.M. is given by $Y=A \cos [\pi(t+\phi)]$. If at $\mathrm{t}=0$, the displac

The string of pendulum of length ' $L$ ' is displaced through $90^{\circ}$ from the vertical and released. Then the maxi