2 mL of sodium hydroxide solution is added to a fewtaken in a test tub

1.	2 mL of sodium hydroxide solution is added to a fewtaken in a test tube. When the contents are warmed, a gas evolves which is bubbledthrough a soap solution before testing. Write the equation of the chemical reactioninvolved and the test to detect the gas. Name the gas which will be evolved when thesame metal reacts with dilute solution of a strong acid.pieces of granulated zinc metal
Answer» When sodium hydroxide reacts with granulated zinc it produces sodium zincate + hydrogen gas Reaction is as follows:- 2NaOh+Zn----->(Heating) Na2ZnO2+H2 When the gas that is hydrogen is bubbled through soap solution and matchstick is put in front of it then it will make a Pop sound and blow off. Now, Let strong acid be HCl Then Hydrochloric acid when reacted with Zinc metal will give zinc chloride + hydrogen gas The reaction is followed :- HCl + Zn ---->ZnCl2 + H2 Or pH of salt is 14 So the salt must be Sodium Hydogen Carbonate NaHCO3 REACTION :- NaCl + H2O + NH3 + CO2 --------> NH4Cl + NaHCO3 Sodium Hydrogencarbonate Like my answer if you find it useful!

2 mL of sodium hydroxide solution is added to a fewtaken in a test tube. When the contents are warmed, a gas evolves which is bubbledthrough a soap solution before testing. Write the equation of the chemical reactioninvolved and the test to detect the gas. Name the gas which will be evolved when thesame metal reacts with dilute solution of a strong acid.pieces of granulated zinc metal

Answer»

When sodium hydroxide reacts with granulated zinc it produces sodium zincate + hydrogen gas

Reaction is as follows:-

2NaOh+Zn----->(Heating) Na2ZnO2+H2

When the gas that is hydrogen is bubbled through soap solution and matchstick is put in front of it then it will make a Pop sound and blow off.

Now, Let strong acid be HCl

Then Hydrochloric acid when reacted with Zinc metal will give zinc chloride + hydrogen gas

The reaction is followed :-

HCl + Zn ---->ZnCl2 + H2

pH of salt is 14

So the salt must be Sodium Hydogen Carbonate

NaHCO3

REACTION :-

NaCl + H2O + NH3 + CO2 --------> NH4Cl + NaHCO3

Sodium Hydrogencarbonate

Like my answer if you find it useful!