Question

Q9. The metal which will not produce by hydrogen gas on reacting with dilute sulphuric acid is:

a). Sodium b). Silver c). Iron d). Zinc

Q10. The element which is stored under kerosene is:

a). Sulphur b). Phosphorus c). Sodium d). Silicon​

Answer 1

A9 b) Silver

This is because of the fact that silver is less reactive. Sodium,iron and zinc do form hydrogen gas when they react with dil. sulphuric acid.

A10 c) Sodium

Sodium is very reactive metal and catch fire if kept in open. Thus it is stored under Kerosene oil to prevent accidental fire.

Answer 2

$\huge\underline\mathtt\color{aqua}Answer$

1. Silver
2. Sodium