LMS

If 20 g of a gas at 1 atmosphere pressure is cooled from 273°C to 0°C at constant pressure its volume would become

The number of Cl^– ions which surround each Na⁺ ion in the NaCl crystal lattice

The crystal of sugar has hydrogen bonding as well as covalent bonds so it belongs to

According to if value of a and b are zero then equation is suitable for

If P, V, M, T and ‘R’ are pressure, volume, molar mass, temperature and gas constant respectively, then for an ideal gas the density is given by

Which of the following liquid has the highest vapour pressure or is the most volatile

On the bases of IMF predict the correct order of increasing boiling point of the substances

The strongest H-bond is

When a liquid is evaporated

According to kinetic theory of gases, the average kinetic energy depends upon

If volume of O₂ is 11.2dm³ at STP, then the number of moles would be

The structure of unit cell of ice is just like that of

Solidified noble gases are the example of ______ solids

Which of the following expressions at constant pressure represents Charles’s law

Hydrogen bonding is present in which pair of molecule

The real gas behaves close to an ideal gas under the conditions of

If P, V, T represent pressure, volume and temperature of a gas the representation of Boyle’s law is

Which of the following is theoretically valid at absolute zero

In a crystal the cations and anions are held together by

KCl is an example of

The postulate of kinetic theory of gases for ideal gas is

The molecules of which gas have largest average K.E. at 250°C

Which one is true if the following is /are the property of solids

Solid NaCl is a bad conductor of electricity because

Which of the following is NOT the basic assumptions of the kinetic theory of gases

The boiling point of water is maximum when external pressure is

In the following graph Which quantities are represented by X-axis and Y-axis

One mole of a gas refers to

Amongst the H₂O, H₂S, H₂Se and H₂Te the one with the highest boiling point is

There is more deviation in the behaviour of a gas from the ideal gas equation PV=nRT

What is the reason that ice at 0oC occupies more volume than water

According to the kinetic theory of gases for an ideal gas

The boiling point of ethanol is higher than ethanal due to

The vapour pressure of the liquid depends upon

In the ideal gas equation PV = n RT, the value of R depends upon

The boiling point of glycerin at 1 atm external pressure is

In a crystal, all the lattice sites are found to be occupied by covalent molecules. To which kind of solid does it belong

Density of water is maximum at

The compressibility factor, (Z=PV/nRT) has value at which a gas show maximum non-ideality in behavior

Cation and anion combines in a crystal to form following type of solids

When water freezes it occupies 9% more space and its density

The vapour pressure is highest for which liquid at its boiling point when external pressure is 1 atm

Which of the following gas has maximum density at constant temperature

The acetone can dissolve in chloroform by hydrogen bonding and acetone is a liquid at room temperature predominantly because of

Which of the following solid has highest lattice energy

As the speed of gas molecules decreases, the number of collosions per second

The intermolecular forces are present in between molecules of liquid oxygen and liquid hydrogen may be

When the product of pressure and volume is plotted against pressure for a given amount of gas, the line obtained is

Identify the value of R at STP

The statement “equal volumes of gases measured at same temperature and pressure contain same number of molecules” is known as