Joint Entrance Mock Test

Can you provide me previous year Chemistry question paper of WBJEE (West Bengal Joint Entrance Examination) for preparation of the exam?

[shikha]

The previous year Chemistry question paper of WBJEE (West Bengal Joint Entrance Examination) for preparation of the exam is as follows:

A van der Waals gas may behave ideally when
(A) The volume is very low
(B) The temperature is very high
(C) The pressure is very low
(D) The temperature, pressure and volume all are very high
Ans : (C)


2-Methylpropane on monochlorination under photochemical condition give
(A) 2-Chloro-2-methylpropane as major product
(B) (1:1) Mixture of 1-chloro-2-methylpropane and 2-chloro-2-methylpropane
(C) 1-Chloro-2-methylpropane as a major product
(D) (1:9) Mixture of 1-chloro-2-methylpropane and 2-chloro-2-methylpropane
Ans : (C)


Chlorine gas reacts with red hot calcium oxide to give
(A) Bleaching powder and di hlorine monoxide (B) Bleaching powder and water
(C) Calcium chloride and chlorine dioxide (D) Calcium chloride and oxygen
Ans : (D)


(+)-2-chloro-2-phenylethane in toluene racemises slowly in the pre ence of mall amount of SbCl5, due to the formation of
(A) Carbanion (B) Carbene (C) Free-radical (D) Carbocation
Ans : (D)


The different colours of litmus in acidic, neutral and basic solutions are, respectively
(A) Red, orange and blue (B) Blue, violet and red
(C) Red, colourless and blue (D) Red, violet and blue
Ans : (D)