Question

Q23- An element X on reaction with a dilute acid liberates a colourless gas
which burns with a pop sound.
(1) Name the gas produced.
(i) Substance formed by burning X'in air changes the colour of litmus solu-
tion. What will be the colour change?
(ii) Will element X conduct electricity Give reason for your answer​

Answer 1

Answer:

the gas liberated is hydrogen gas which burns with pop sound when bring near a burning splinter.

Answer 2

i) Name the gas produced.

Ans) Hydrogen

ii) Substance formed by burning 'X' in air changes the colour of litmus solution. What will be the colour change?

Ans) It changes blue litmus to red litmus.

iii) Will element X conduct electricity Give reason for your answer.

Ans) Yes, it conduct electricity because it consists H+ ions.