Question

State whether the following statements are true or false?
(a) All metals exist in solid form at room temperature.
(b) Coal can be drawn into wires.
(c) Non-metals react with dilute acids to produce hydrogen gas.
(d) Sodium is a very reactive metal.
(e) Copper displaces zinc from zinc sulphate solution.
(f) Rust formed on iron objects is basic in nature.
(g) Non-metals react with water to form a gas which burns with a ‘pop’ sound.

Answer 1

Explanation:

a) false.

b) false

c)false

d)true

e)false

f) true

g)false.

Answer 2

(a) False  

(b) True

(c) False  

(d) True

(e) False  

(f) True

(g) False

Explanation:

(a) All metals exist in solid form at room temperature. False (Exception - Gallium and Mercury)

(b) Coal can be drawn into wires. True

(c) Non-metals react with dilute acids to produce hydrogen gas. False

(d) Sodium is a very reactive metal. True

(e) Copper displaces zinc from zinc sulphate solution. False (Copper is less reactive than Zinc)

(f) Rust formed on iron objects is basic in nature. True

(g) Non-metals react with water to form a gas which burns with a ‘pop’ sound. False