A compound G on heating gives a cracking sound, reddish brown fumes H, a gas J which rekindle/relight a glowing splint and a residue K. The residue K is reddish brown when hot and yellow when cold
i) Identify G, H, J and K
ii) What is the name given to the cracking sound?

Please answer urgently needed. Thank you.

The answer to {ii} should be decrepitation...

I might be right/wrong.

I leave the rest to the real Chemistry students.

OfficialR:
A compound G on heating gives a cracking sound, reddish brown fumes H, a gas J which rekindle/relight a glowing splint and a residue K. The residue K is reddish brown when hot and yellow when cold
i) Identify G, H, J and K
ii) What is the name given to the cracking sound?

Please answer urgently needed. Thank you.

G = Lead Nitrate, Pb(NO3)2

H = Nitrogen (IV) Oxide gas, NO2

J = Oxygen gas, O2

K = Lead Oxide, PbO

The cracking sound is called Decrepitation

Equation of reaction;
2Pb(NO3)2 + heat ==> 2PbO + 4NO2 + O2

Internetsombody:


G = Lead Nitrate, Pb(NO3)2

H = Nitrogen (IV) Oxide gas, NO2

J = Oxygen gas, O2

K = Lead Oxide, PbO

The cracking sound is called Decrepitation

Thank you so much for the answers

OfficialR:


Thank you so much for the answers

You are welcome sir