Question

31. Match columns A and BAB
(i) Air (a) a compound (ii)
Water (b) an inactive gas (iii)
Oxygen (c) a mixture (iv)
Nitrogen (d) an active element
a) (i) – c, (ii) – a, (ii) – d, (iv) - b
b) (i) – a, (ii) – d, (iii) – b, (iv) -
c) (i) – b, (ii) – c, (ii) – a, (iv) - d
d) (i) – d, (ii) – b, (iii) – a, (iv) – d​

Answer 1

Answer:

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Explanation:

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