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Original solution of salt or mixture should not be prepared in concentrated `HNO_(3)` because it:

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Original solution of salt or mixture should not be prepared in concentrated `HNO_(3)` because it:
A. is highly corrosive
B. oxidises `H_(2)S` to `S` in `II^(nd)` group.
C. undergoes disproportionation reaction
D. converts sulphide of `Ba, Sr` and `Pb` into insoluble sulphates
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Correct Answer - B,D
(B)`2HNO_(3)to 2NO_(2)+H_(2)O+[O],H_(2)S+[O]toH_(2)O+S darr`
(D)`2HNO_(3)to 2NO_(2)+H_(2)O+[O],PbS+[O]to PbSO_(4) darr`
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