0.45 g of an organic compound (A) on ignition gives 0.905 g CO_2 and 0.185 gH_2O.0.35 g (A) on boiling with HNO_3and adding AgNO_3solution gives 0.574 g of AgCl. The vapour density of (A) is 87.5. (A) on hydrolysis with Ca (OH)_2yields (B) which on mild reduction gives an optically active compound (C). On heating (C) with I_2 and NaOH, iodoform is produced along with (D). With HCI, (D) gives a solid which is markedly more soluble in hot water than in cold. Identify (A), (B), (C) and (D).

0.45 g of an organic compound (A) on ignition gives 0.905 g CO_2 and 0

1.	0.45 g of an organic compound (A) on ignition gives 0.905 g CO_2 and 0.185 gH_2O.0.35 g (A) on boiling with HNO_3and adding AgNO_3solution gives 0.574 g of AgCl. The vapour density of (A) is 87.5. (A) on hydrolysis with Ca (OH)_2yields (B) which on mild reduction gives an optically active compound (C). On heating (C) with I_2 and NaOH, iodoform is produced along with (D). With HCI, (D) gives a solid which is markedly more soluble in hot water than in cold. Identify (A), (B), (C) and (D).
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