EVERYDAY SCIENCE

SCIENCE

CHEMISTRY

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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: -Sodium carbonate and potassium carbonate is stable and it doesn’t decompose by heat. Rest other carbonates decompose on heating.

Detailed explanation-2: -Sodium carbonate and potassium carbonate are the two carbonates which does not decompose when heated.

Detailed explanation-3: -On the other hand we see that as Sodium and Potassium belongs to alkali metals or group (I) metals so the carbonates formed with the alkali group metals will not decompose on heating as they are thermally stable except Li2CO3 which is thermally unstable.

Detailed explanation-4: -Final Answer: Sodium carbonate Na 2 CO 3 and Potassium carbonate K 2 CO 3 do not decompose on heating.

Detailed explanation-5: -Correct option D K2CO3Explanation :Alkali metal carbonates except Li2CO3 do not decompose on heating.

There is 1 question to complete.