Question

The chemical properties of elements in ____ are similar due to same

valance electrons. (period/ group/ series)

(ii) The most metallic element in Period 3 is _____. (sodium/ magnesium/

aluminium)

(iii) Ammonia is a strong ____ agent. (oxidising/ reducing/ dehydrating)

(iv) Saltcontaining ____ ion, does notprecipitate with ammonium

hydroxide. (calcium/ lead/ zinc)

(v) ______ is a nitrogen containing compound formed by reacting

ammonia with excess of chlorine gas. (NH4Cl / NCl3 / NOCl3)​

Answer 1

Answer:

1. group

2. Magnesium

3.oxidising

4. calcium

5. don't know.

Answer 2

Answer:

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