IIT-JEE Exam

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

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IIT-JEE Other Question

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 The molarity of a solution obtained by mixing 750
mL of 0.5(M)HCl with 250 ml of 2(M)HCl will be-
(1) 1.75 M (2) 0.975 M
(3) 0.875 M (4) 1.00 M