In Lassaigne test thiourea is converted into- (a) \( \mathrm{NaCNS} \) (b) \( \mathrm{Na}_{2} \m...

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In Lassaigne test thiourea is converted into-
(a) \( \mathrm{NaCNS} \)
(b) \( \mathrm{Na}_{2} \mathrm{~S} \)
(c) \( \mathrm{NaCN} \)
(d) \( \mathrm{Na}_{2} \mathrm{SO}_{4} \)
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