JEE Main Chemistry question

Stannous oxide can be obtained by:

(A)Heating tin strongly in air
(B)Heating meta-stannic acid
(C)Heating tin(II) oxalateCorrect
(D)None of the above

Answer: (C)

Solution

Heating tin strongly in air gives the fully oxidised stannic oxide, , and heating metastannic acid likewise gives . Stannous oxide, , is instead obtained by

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Question ID VK-138667