Identify the angle $\mathrm{O}-\mathrm{S}-\mathrm{O}$ in $\mathrm{SO}_2$ molecule.

Calculate the number of unit cells in 0.9 g metal if it forms bec structure. $\left[\rho \times \mathrm{a}^3=3 \times 10

Which of the following polymers need $\mathrm{HO}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{OH}$ as one of the monomers for it

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

What is molecular formula of undecane?

Which from following elements has completely filled 4 f orbital at expected ground state configuration?

Which from following compounds is NOT in gaseous phase at $25^{\circ} \mathrm{C}$ ?

Calculate the pH of 0.01 M sulphuric acid.

Identify the correct statement from following properties.

Which of the following is true for a reaction as per coliision theory?

What is the IUPAC name of following compound?

What is wavenumber of a radiation having wavelength $0.25 \mu \mathrm{~m}$ ?

What is the product of Hydroborationoxidation of but-1-ene?

Identify the class of $\left(\mathrm{C}_6 \mathrm{H}_5\right)_3 \mathrm{~N}$ ?

What is the conductivity of 0.05 M NaOH solution having resistance 31.5 ohm and cell constant $0.315 \mathrm{~cm}^{-1}$

What is IUPAC name of the following compound?

The enthalpy of vaporisation of a liquid is $30 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and entropy of vaporisation is $75 \mat

Which from following polymers is used as substitute for wool?

Which from following complexes is having ambidentate ligand in it?

What is the number of moles of oxygen and number of moles of N atoms respectively present in one mole thymine?

Identify one dimensional nanostructure from following.

What is the general formula of lanthanoid hydroxide? (Consider Ln as any lanthanoid element)

Find the void volume of fcc unit cell in $\mathrm{cm}^3$ if the volume of fcc unit cell $1.25 \times 10^{-22} \mathrm{~c

Find work done on 2 mole of an ideal gas at $27^{\circ} \mathrm{C}$ if it is compressed reversibly and isothermally from

Rate of reaction, $\mathrm{A}+\mathrm{B} \rightarrow$ product, is $7.2 \times 10^{-2} \mathrm{moldm}^{-3} \mathrm{~s}^{-

Identify the product obtained when alkenes react with cold and dilute alkaline potassium permanganate.

Which among the following has the highest melting point?

What is the oxidation state of phosphorus in phosphate ion?

Which from the following concentrations of a weak electrolyte solution exhibits maximum molar conductivity?

Which among the following is NOT dicarboxylic acid?

What is IUPAC name of following compound?

Consider the following cell $\mathrm{E}^{\circ}$ cell $=1.007 \mathrm{~V}$ and $\mathrm{E}^{\circ}$ calomel $=0.242 \mat

Identify the substrate ' A ' in the following conversion. $$A \xrightarrow[\mathrm{H}_3 \mathrm{O}^{+}]{\mathrm{AlH}(\ma

Find the number of moles of sodium atoms in $6.9 \times 10^{-2} \mathrm{~kg}\left(\right.$ Atomic mass $\left.=23 \mathr

Identify the product ' B ' in the following sequence of recations. $$\mathrm{CH}_3 \mathrm{Br} \xrightarrow{\mathrm{KCN}

Which of the following elements belongs to second group and fifth period of periodic table?

Which among the following has lowest boiling point?

Which of the following species contain 20 electrons?

A zero order reaction has half life time of 0.2 minute. If initial concentration of reactant is $0.2 \mathrm{~mol} \math

Which of the following is NOT optically active compound?

What is the numerical value of gas constant $R$ in terms of $\mathrm{L} \mathrm{atm} \mathrm{K}^{-1} \mathrm{~mol}^{-1}$

What type of solid is the silica?

Which from following mixtures in water acts as a buffer?

Calculate van't Hoff factor of 0.15 M solution of electrolyte if it freezes at $-$0.5 K. $$\left[\mathrm{K}_{\mathrm{f}}

Calculate the solubility in $\mathrm{mol} \mathrm{dm}^{-3}$ of sparingly soluble salt BA if its solubility product $4.9

Which of the following equations gives combined relationship of Boyle's law and Charle's law?

What is the value of slope in Freundlich adsorption isotherm $\log \frac{\mathrm{x}}{\mathrm{m}}$ against $\log \mathrm{

What is the total number of electrons present in bonding orbitals of $\mathrm{O}_2$ molecule according to molecular orbi

Calculate the relative lowering of vapour pressure of solution containing 46 g of non volatile solute in 162 g of water

Identify acidic amino acid from following (represented by using three letter symbols)

The materials having negative magnetic susceptibility are

In most liquids, with rise in temperature, surface tension of a liquid

 Two identical capacitors A and B are connected in series to a battery of E.M.F., 'E'. Capacitor B contains a slab of di

In $\mathrm{M}_{\mathrm{O}}$ is the mass of an oxygen isotope ${ }_8 \mathrm{O}^{17}$ and $\mathrm{M}_{\mathrm{p}}$ and

Two point charges $+8 q$ and $-2 q$ are located at $x=0$ and $x=\mathrm{L}$ respectively. The location of a point on the

When an electron orbiting in hydrogen atom in its ground state jumps to higher excited state, the de-Broglie wavelength

A graph of magnetic flux $(\phi)$ versus current (I) is shown for 4 different inductors $\mathrm{P}, \mathrm{Q}, \mathrm

The magnetic induction along the axis of a toroidal solenoid is independent of

Optical path of a particular ray of light has travelled a distance of 3 cm in flint glass is same as that on travelling

A string is under tension of 180 N and mass per unit length $2 \times 10^{-3} \mathrm{Kg} / \mathrm{m}$. It produces two

Two spheres of equal masses, one of which is a thin spherical shell and the other solid sphere, have the same moment of

Assuming the expression for the pressure exerted by the gas, it can be shown that pressure is

A particle executing S.H.M. has velocities ' $\mathrm{V}_1$ ' and ' $\mathrm{V}_2$ ' at distances ' $x_1$ ' and ' $x_2$

The angle of incidence is found to be twice the angle of refraction when ray of light passes from vacuum into a medium o

The input signal given to C.E. amplifier having a voltage gain of 126 is $V_i=2 \cos \left(12 t+\frac{\pi}{3}\right)$. T

The figure shows the variation of photocurrent with anode potential for four different radiations. Let $\mathrm{I}_{\mat

When a resistance of $100 \Omega$ is connected in series with a galvanometer of resistance G , its range is V . To doubl

The angular separation of the central maximum in the Fraunhofer diffraction pattern is measured. The slit is illuminated

A particle starting from rest moves along the circumference of a circle of radius ' $r$ ' with angular acceleration ' $\

If heat energy $\Delta \mathrm{Q}$ is supplied to an ideal diatomic gas, the increase in internal energy is $\Delta U$ a

How many times more intense is a 60 dB sound that a 30 dB sound?

Two loops P and Q of radii $\mathrm{R}_1$ and $\mathrm{R}_2$ are made from uniform metal wire of same material. $I_p$ an

The power radiated by a black body is P and it radiates maximum energy around the wavelength $\lambda_0$. Now the temper

Two coils P and Q each of radius R carry currents I and $\sqrt{8} \mathrm{I}$ respectively in same direction. Those coil

In Young's double slit experiment, intensity at a point is $\left(\frac{1}{4}\right)$ of the maximum intensity. The angu

The mutual inductance of two coils is 45 mH . The self-inductance of the coils are $\mathrm{L}_1=75 \mathrm{mH}$ and $\m

Frequency of the series limit of Balmer series of hydrogen atom of Rydberg's constant ' $R$ ' and velocity of light ' $C

The co-ordinates of a moving particle at any time ' $t$ ' are given by $x=\alpha t^3$ and $y=\beta t^3$ where $\alpha$ a

 A bucket full of hot water is kept in a room. If it cools from $75^{\circ} \mathrm{C}$ to $70^{\circ} \mathrm{C}$ in $t

A cylinder contains water upto a height ' $H$ '. It has three orifices $\mathrm{O}_1, \mathrm{O}_2, \mathrm{O}_3$ as sho

In LCR series circuit, an alternating e.m.f. 'e' and current ' $i$ ' are given by equations $\mathrm{e}=160 \sin (100 \m

The power $(\mathrm{P})$ is supplied to a rotating body having moment of inertia ' I ' and angular acceleration ' $\alph

When the dielectric is placed in an external electric field, the electric field inside the dielectric is

A satellite is orbiting just above the surface of the planet of density ' $\rho$ ' with periodic time ' $T$ '. The quant

The truth table of the following circuit is

Two sound waves each of wavelength ' $\lambda$ ' and having the same amplitude ' $A$ ' from two source ' $\mathrm{S}_1$

The potential difference $\left(V_A-V_B\right)$ between the points A and B in the given part of the circuit

An ideal diatomic gas is heated at constant pressure. What is the fraction of total energy applied, which increases the

An electric lamp connected in series with a capacitor and an a.c. source is glowing with certain brightness. On increasi

A series combination of $n_1$ capacitors, each of value $C_1$ is charged by a source of potential difference 6 V . Anoth

The speed with which the earth would have to rotate about its axis so that a person on the equator would weigh $\frac{3}

A simple pendulum has a periodic time ' $\mathrm{T}_1$ ' when it is on the surface of earth of radius ' $R$ '. Its perio

A coil of resistance $250 \Omega$ is placed in a magnetic field. If the magnetic flux $(\phi)$ linked with the coil vari

If the $\mathrm{p}-\mathrm{n}$ junction diode is unbiased,

When capillary is dipped vertically in water, rise of water in capillary is ' h '. The angle of contact is zero. Now the

The alternating voltage is given by $\mathrm{v}=\mathrm{v}_0 \sin \left(\omega \mathrm{t}+\frac{\pi}{3}\right)$ when wil

In case of system of two-particles of different masses, the centre of mass lies

A simple pendulum of length L has mass m and it oscillates freely with amplitude A. At extreme position, its potential e

A glass slab of thickness 4.8 cm is placed on the piece of paper on which an ink dot is marked. By how much distance wou

In ideal gas of $27^{\circ} \mathrm{C}$ is compressed adiabatically to $(8 / 27)$ of its original volume. If $\gamma=\fr