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Which of the following statements is/are...

Which of the following statements is/are correct ?

A

When a Lassaigne.s solution is heated with dil. `HNO_3`, cooled and `AgNO_3` Solution is added, a `NH_4OH`, indicates the presence of iodine in organic compound.

B

When `(CH_3 COO)_4` pb solution is added to the acidified Lassaigne.s extract of an organic compound, a black precipitate of PbS is formed.

C

An organic compound containing N, on heating with conc. `H_2SO_4`gives `(NH_4)_2SO_4` which liberates `NH_3` on treatment with excess of NaOH.

D

The molecular mass of non-volatile organic compound is determined either by Dumas method or by Vector Meyer.s method.

Text Solution

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The correct Answer is:
B, C
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