SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which salt is not decomposed when heated strongly?
A
Zinc nitrate
B
Ammonium chloride
C
Potassium carbonate
D
Copper(II) sulphate
Explanation: 

Detailed explanation-1: -All carbonates salts except potassium carbonate and sodium carbonate can be decomposed by heat to produce carbon dioxide gas.

Detailed explanation-2: -Final Answer: Sodium carbonate Na 2 CO 3 and Potassium carbonate K 2 CO 3 do not decompose on heating.

Detailed explanation-3: -Sodium is a very reactive metal, and hence forms a very strong bond with the carbonate ion. Thus Na2CO3 does not decompose on heating.

There is 1 question to complete.