1.

Compound A (molecular formula C_(3)H_(8)O) is treated with acidified potassium dichromate to form a product B (molecular formula C_(3)H_(6)O), B forms a shining silver mirror on warming with ammoniacal silver nitrate. B when treated with an aqueous solution of H_(2)NCONHNH_(2).HCl and sodium acetate gives a product C. Identify the structure of C.

Answer»

`CH_(3)CH_(2)CH = N NHCONH_(2)`
`CH_(3)-UNDERSET(CH_(3))underset(|)C = NCONHNH_(2)`
`CH_(3)-underset(CH_(3))underset(|)C = NCONHNH_(2)`
`CH_(3)CH_(2)CH = NCONHNH_(2)`

SOLUTION :`underset(A(C_(3)H_(8)O))(CH_(3)CH_(2)CH_(2)OH) underset(-H_(2)O)overset([O])to underset(B(C_(3)H_(6)O))(CH_(3)CH_(2)CHO) underset(-H_(2)O)overset(NH_(2)CONHNH_(2))to CH_(3)CH_(2)CH=N NHCONH_(2)`


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