Which of the following salts on heating gives a mixture of two gases ?
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a
BaNO32
b
NaNO3
c
KNO3
d
RbNO3
answer is A.
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Detailed Solution
BaNO32 → ∆ BaO + 2NO2 + 12 O2 ; Alkali metal nitrates give only O2 on heating below 5000C according to following reaction,MNO3 → MNO2 + O2 ; where M=Alkali metal