Question 2
Question 2 of 40
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Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
1. States of matter
1.2. Diffusion

Describe and explain the effect of relative molecular mass on the rate of diffusion of gases

11. Organic chemistry
11.3. Fuels

Name methane as the main constituent of natural gas

3. Stoichiometry
3.3. The mole and the Avogadro cons...

Use the molar gas volume, taken as 24 dm(^3) at room temperature and pressure, r.t.p., in calculations involving gases