Question 8
Question 8 of 40
Question image for Q8
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

3. Stoichiometry
3.2. Relative masses of atoms and m...

Describe relative atomic mass, \( A_r \), as the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of \( ^{12}C \)

11. Organic chemistry
11.4. Alkanes

Describe the properties of alkanes as being generally unreactive, except in terms of combustion and substitution by chlorine