Question
Sun March 30, 2014 By: Tanya Raj

What is the correct order of increasing thermal stabilities of-

1.Pottasium Carbonate

2.Magnesium Carbonate

3.Calcium Carbonate

4.Beryllium Carbnate

Expert Reply
Mon March 31, 2014

The temperature at which group 2 carbonates start to decompose increases down the group.

Potasium Carbonate is very difficult to decompose.

Beryllium carbonate is so unstable that it does not exist at room temperature.

    Compound

Temperature at which carbonates starts to decompose(0C)

Magnesium carbonate

540

Calcium carbonate

900

Strontium carbonate

1280

Barium carbonate

1360

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