Sodium fusion extract of diethyl thio ether is prepared. The reagent used and the colour obtained to identify the extra element of thio ether respectively are
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a
Lead acetate, black
b
Ammonium molybdate, yellow
c
Ferrous sulphate, prussian blue
d
Silver nitrate, yellow
answer is A.
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Detailed Solution
The extra element is sulphur;Na2S+CH3COO2Pb→CH3COOH2CH3COONa+PbS; A black ppt of PbS is obtained;
Sodium fusion extract of diethyl thio ether is prepared. The reagent used and the colour obtained to identify the extra element of thio ether respectively are