List of top Chemistry Questions on States of matter asked in NEET (UG)

Intermolecular forces are forces of attraction and repulsion between interacting paiticles that will include :

Assertion (A): In a particular point defect, an ionic solid is electrically neutral, even if few of its cations are missing from its unit cells.
Reason(R): In an ionic solid, Frenkel defect arises due to dislocation of cation from its lattice site to interstitial site, maintaining overall electrical neutrality.
Choose the most appropriate answer from the options given below:

A 10.0 L flask contains 64 g of oxygen at 27°C. (Assume O₂ gas is behaving ideally). The pressure inside the flask in bar is (Given R = 0.0831 L bar K^-1 mol^-1)

For irreversible expansion of an ideal gas under isothermal condition, the correct option is

Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O₂ and 2 g H₂confined in a total volume of one litre at 08C is : [Given R=0.082 L atm mol⁻¹K⁻¹, T=273 K]

Choose the correct option for graphical representation of Boyle’s law, which shows a graph of pressure vs. volume of a gas at different temperatures

The correct option for the number of body centred unit cells in all 14 types of Bravais lattice unit cells is

A mixture of $N_2$ and $Ar$ gases in a cylinder contains $7\,g$ of $N_2$ and $8\,g$ of $Ar$. If the total pressure of the mixture of the gases in the cylinder is $27\, bar$, the partial pressure of $N_2$ is : [Use atomic masses (in g $mol^{-1}$) :$N = 14,Ar = 40$]

A gas at 350 K and 15 bar has molar volume 20 percent smaller than that for an ideal gas under the same conditions. The correct option about the gas and its compressibility factor (Z) is :

Given van der Waals constant for $NH _{3}, H _{2}, O _{2}$ and $CO _{2}$ are respectively $4.17, 0.244, 1.36$ and $3.59$, which one of the following gases is most easily liquefied?

Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for one-half of the hydrogen to escape ?

A gas such as carbon monoxide would be most likely to obey the ideal gas law at :

Equal masses of $H_2, O_2$ and methane have been taken in a container of volume V at temperature $27^\circ$C in identical conditions. The ratio of the volumes of gases ${H_2 : O_2 :CH_4}$ would be

Dipole induced dipoloe interactions are present in which of the following pairs :-

What is the density of $N_2$ gas at $227°C$ and 5.00 atm. pressure ? (R = 0.082 L Atm $K^{-1} mol^{-1}$)

Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats $(C_p/C_v)$ of the mixture will be -

A certain gas takes three times as long to effuse out as helium. Its molecular mass will be:

$50\, mL$ of each gas A and of gas B takes $150$ and $200\, s$ respectively for effusing through a pin hole under the similar conditions. If molecular mass of gas B is $36,$ the molecular mass of gas A will be

For real gases van der Waals equation is written as $\bigg( p + \frac{an^2}{V^2} \bigg) (V - nb) = nRT$ Where 'a' and 'b' are van der Waals constants . Two sets of gases are : (I)${ O2, CO2, H2}$ and $He$ (II) ${CH4, O2}$ and ${H2}$ The gases given in set-I in increasing order of 'b' and gases given in set-II in decreasing order of 'a', are arranged below. Select the correct order from the following :

A bubble of air is underwater at temperature $15^{\circ}C$ and the pressure $1.5 \,bar$. If the bubble rises to the surface where the temperature is $25^{\circ}C$ and the pressure is $1.0\, bar$, what will happen to the volume of the bubble?

By what factor does the average velocity of a gaseous molecule increase when the temperature (in kelvin) is doubled?

A gaseous mixture was prepared by taking equal moles of $CO$ and $N_2.$ If the total pressure of the mixture was found $1$ atmosphere, the partial pressure of the nitrogen $(N_2)$ in the mixture is

Volume occupied by one molecule of water $(density\, = 1 g\, cm^{-3} )$ is

The surface tension of which of the following liquid is maximum

List of top Chemistry Questions on States of matter asked in NEET (UG)

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