IIT-JEE 2010 · Paper 2 · Chemistry Q19

ChemistryMatrix match+8Question 19 of 57

All the compounds listed in Column I react with water. Match the result of the respective reactions with the appropriate options listed in Column II.

Column I

A
$\ce{(CH3)2SiCl2}$
B
$\ce{XeF4}$
C
$\ce{Cl2}$
D
$\ce{VCl5}$

Column II

P
Hydrogen halide formation
Q
Redox reaction
R
Reacts with glass
S
Polymerization
T
$\ce{O2}$ formation

Answer and worked solution

Official answer: A → P, S; B → P, Q, R, T; C → P, Q; D → P

A, $\ce{(CH3)2SiCl2}$ : hydrolysis gives HCl and $\ce{(CH3)2Si(OH)2}$ , which condenses to linear silicone chains. → P (hydrogen halide), S (polymerisation).
B, $\ce{XeF4}$ : $\ce{6XeF4 + 12H2O -> 4Xe + 2XeO3 + 24HF + 3O2}$ . Xenon disproportionates (redox), HF forms and attacks glass, and $\ce{O2}$ is evolved. → P, Q, R, T.
C, $\ce{Cl2}$ : $\ce{Cl2 + H2O -> HCl + HOCl}$ , a disproportionation of chlorine (0 → −1 and +1). → P, Q.
D, $\ce{VCl5}$ : hydrolysis gives HCl and vanadium oxochlorides/oxide with V staying +5. → P.

Answer: A → P, S; B → P, Q, R, T; C → P, Q; D → P

Topics:Group 18 Silicates and silicones Group 17 Transition element properties

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IIT-JEE 2010 · Paper 2, Chemistry question 19