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Old April 25th, 2014, 05:21 PM
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Default Re: West Bengal Joint Entrance Chemistry Exam Question Papers

Here I am providing you the Previous Year Chemistry Question Paper of West Bengal Joint Entrance Exam

In diborane, the number of electrons that account for bonding in the bridges is
(A) Six (B) Two (C) Eight (D) Four
Ans : (D)

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)

For a chemical reaction at 27°C, the activation energy is 600 R. The ratio of the rate constants at 327°C to that of at 27°C will be
(A) 2 (B) 40 (C) e (D) e2
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)

Acid catalysed hydrolysis of ethyl acetate follows a pseudo-first order kinetics with respect to ester. If the reaction is carried out with large excess of ester, the order wi h respect to ester will be
(A) 1.5 (B) 0 (C) 2 (D) 1
Ans : (B)






Rest of the Questions are attached in below file which is free of cost
Attached Files Available for Download
File Type: pdf West Bengal Joint Entrance Chemistry Exam Question Paper.pdf (592.1 KB, 197 views)
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