## Ideal gas equation MCQ Advanced Level

Compared to other sections, Chemistry is considered to be the most scoring section. If prepared thoroughly, chemistry can help students to secure a meritorious position in the exam. These questions are very important in achieving your success in Exams after 12th.

Q1. Two separate bulbs contain ideal gases A and B. The density of gas A is twice that of gas B. The molecular mass of A is half that of gas B. The two gases are at the same temperature. The ratio of the pressure of A to that of gas B is

•  2
•  1/2
•  4
•  1/4

4

Q2. 16 g of oxygen and 3 g of hydrogen are mixed and kept at 760 mm pressure and 0°C . The total volume occupied by the mixture will be nearly

•  22.4 litres
•  33.6 litres
•  448 litres
•  44800 ml

44800 ml

Q3. Pure hydrogen sulphide is stored in a tank of 100 litre capacity at 20°C and 2 atm pressure. The mass of the gas will be

•  34 g
•  340 g
•  282.4 g
•  28.24 g

282.4 g

Q4. One litre of a gas weighs 2 g at 300 K and 1 atm pressure. If the pressure is made 0.75 atm, at which of the following temperatures will one litre of the same gas weigh one gram

•  450 K
•  600 K
•  800 K
•  900 K

450 K

Q5. For an ideal gas number of moles per litre in terms of its pressure P, gas constant R and temperature T is

•  PT/R
•  PRT
•  P/RT
•  RT/P

P/RT

Q6. If two moles of an ideal gas at 546 K occupy a volume of 44.8 litres, the pressure must be

•  2 atm
•  3 atm
•  4 atm
•  1 atm

2 atm

Q7. The density of a gas at 27°C and 1 atm is d. Pressure remaining constant at which of the following temperatures will its density become 0.75 d

•  20°C
•  30°C
•  400 K
•  300 K

400 K

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