Question

ANSWER THE FOLLOWING
1. Mark 'T' if the statement is True and 'F' if it is False.
(a) Generally, non-metals react with acids.
(b) Sodium is very reactive metal.
(c) Copper displaces zinc from zinc sulphate solution.
(d) Coal can be drawn into wires.​

Answer 1

$\mathfrak{\large{\underline{\underline{Answer :-}}}}$

(a) Generally, non-metals react with acids

$\tt{\Rrightarrow}$ False

Non-metal don't react with the dilute acids. Metals such as sodium, magnesium, iron, alluminium and zinc with dilute acids.

$\rule{300}{1.5}$

(b) Sodium is very reactive metal.

$\tt{\Rrightarrow}$ True

Metals such as lithium and sodium react readily and vigorously with the oxygen present in the air at room temperature, such metal need to be stored in kerosene to avoid contact atmospheric oxygen.

$\rule{300}{1.5}$

(c) Copper displaces zinc from zinc sulphate solution.

$\tt{\Rrightarrow}$ False

Only a more reactive metal can displace the less reactive metal from its salt solution. Copper being less reactive cannot displace Zinc from Zinc sulphate solution.

$\rule{300}{1.5}$

(d) Coal can be drawn into wires.

$\tt{\Rrightarrow}$ False

Coal is a non metal. Metals possess ability to be drawn into long and thin wires this property is known as ductility.

Non-metals are not ductile that is they cannot be drawn into wires.

Answer 2

a) False.

(Because non-metal never react with acids.)

b) True

(Sodium is very reactive metal because it react fastly with oxygen which is present in our room. So we have to stored them in kerosene.

c) False.

(Because Cu is less reactivate element than Zn)

d) False

(Because coal is a non-metal).