IIT-JEE Exam

A solution of (–) – 1 – chloro – 1 – phenylethane
in toluene racemises slowly in the presence of a
small amount of SbCl5, due to the formation of -
(1) carbocation (2) free radical
(3) carbanion (4) carbene

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IIT-JEE Other Question
Which of the following exists as covalent crystals
in the solid state ?
(1) Sulphur (2) Phosphorus
(3) Iodine (4) Silicon How many litres of water must be added to 1 litre
of an aqueous solution of HCl with a pH of 1 to
create an aqueous solution with pH of 2 ?
(1) 2.0 L (2) 9.0 L
(3) 0.1 L (4) 0.9 L