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Question

Reactions are listed in List-I. Match the result of the respective reactions with the appropriate options listed in List-II.

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Solution

(A) P4+8SOCl24PCl3+4SO2+S2Cl2 (dimeric halide)
SO2 is an acidic oxide. It reacts with water to give sulphurous acid.

(B) 2KI+H2O+O32KOH+I2+O2

(C) 2SO2+O2V2O5/heat2SO3;SO3(s) exists as (SO3)3. It exists as a cyclic form at room temperature.
It is an acidic oxide. It reacts with water to form sulphuric acid.

(D) 3H3PO3+3Br2heatinasealedtube(HPO3)3+6HBr
(HPO3)3 is trimetaphosphoric acid which exists in cyclic form at room temperature.

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