Question

IL DULULIUIL
LAU
27/
س
28%
How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal ?
Name the gas evolved when dilute HCl reacts with sodium hydrogencarbonate. How is it recognised ?
9. Give the names and formulae of two strong acids and two weak acids.
10. Name one natural source of each of the following acids :
actic acid
(d) Tartaric acid
29.
tric acid
acid​

Answer 1

Answer:

IL DULULIUIL

LAU

27/

س

28%

How will you test for the gas which is liberated when hydrochloric acid reacts with an active metal ?

Name the gas evolved when dilute HCl reacts with sodium hydrogencarbonate. How is it recognised ?

9. Give the names and formulae of two strong acids and two weak acids.

10. Name one natural source of each of the following acids :

actic acid

(d) Tartaric acid

29.

tric acid

acid

Answer 2

Answer:

When we bring a matchbox near the gas it burns with a pop sound.

When dilute HCl reacts with sodium hydrogen carbonate CO² ga is released .

It is passed through lime water it turns milky

HCl and HNO 3 are strong acids

Acetic acid and Lactic acid are weak acids

Vinegar: acetic acid

Tartaric acid:grapes