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In salts of polyatomic anion, as polaris...

In salts of polyatomic anion, as polarising power of cation increase, thermal stability of the salt decrease and decomposed species may further undergo redox reaction
Q. Which of the followinng species undergoes non-redox thermal decomposition reaction on heating?

A

`FeSO_(4)`

B

`SnSO_(4)`

C

`H_(2)C_(2)O_(4)`

D

`Na_(2)HPO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
D
`implies2FeSO_(4)overset(Delta)toFe_(2)O_(3)+SO_(2)uarr+SO_(3)uarr`
`implies SnSO_(4) overset(Delta)toSnO_(2)+SO_(2)uarr`
`implies H_(2)C_(2)O_(4)overset(Delta)to CO uarr+CO_(2)uarr+H_(2)O`
`implies 2Na_(2)HPO_(4) overset(Delta)to Na_(2)P_(2)O_(7)+H_(2)O`
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