Question

which one of the following element is non metal option a iron option B gold option C carbon option d zinc​

Answer 1

Explanation:

Sodium and potassium both are extremely reactive and react with air as well as water vigorously. The reactions are highly exothermic and hence, the hydrogen gas evolved as byproduct catches fire.

Answer 2

Explanation:

Answer: (C) Potassium

Solution: Sodium and potassium both are extremely reactive and react with air as well as water vigorously. The reactions are highly exothermic and hence, the hydrogen gas evolved as byproduct catches fire.

22. When MgO is dissolved in water, Mg(OH)2 is obtained. The solution thus obtained is ___ in nature.

A. amphoteric

B. alkaline

C. neutral

D. acidic

Answer: (B) alkaline

Solution: An alkaline or basic