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JEE 2020 Chemistry : State of Matter Quiz (02.07.2019)

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Question 1

Which of the following is the correct increasing order of intermolecular forces present in molecules?

Question 2

What is the dominant intermolecular force or bond that must be overcome in converting liquid CH₃OH to a gas ?

Question 3

Equal moles of hydrogen and oxygen gases are placed in 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?

Question 4

If a gas expands at constant temperature, it indicates that

Question 5

vander Waal's real gas, act as an ideal gas, at which condition ?

Question 6

For an ideal gas, number of mol per litre in terms of its pressure P, temperature T and gas constant R is:

Question 7

Two closed bulbs of equal volume (V) containing an ideal gas initially at pressure p₁ and temperature T₁ are connected through a narrow tube of negligible volume as shown in the figure below. The temperature of one of the bulbs is then raised to T₂. The final pressure p_f is :

Question 8

What volume of hydrogen gas(in L) , at 273K and 1 atm pressure will be consumed in obtaining 21.6 g of elemental boron (atomic mass = 10.8) form the reduction of boron trichloride by hydrogen? (Using R=0.0821)

Question 9

By how many folds the temperature of a gas would increase when the root mean square velocity of the gas molecules in a container of fixed volume is increased from

Question 10

Assuming ideal gas behaviour, the ratio of density of ammonia to that of hydrogen chloride at same temperature and pressure is : (Atomic wt. of Cl=35.5 u)

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