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July 7th, 2014, 11:31 AM
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Join Date: Mar 2012
Re: WBJEE Last years solved papers for chemistry

Yes sure, here I am sharing the West Bengal Joint Entrance Examinations (WBJEE) Papers for chemistry:

The decimal equivalent of the binary number (11010.101)2 is
(A) 9.625 (B) 25.265 (C) 26.625 (D) 26.265
Ans : (C)

Half-life of a radioactive substance is 20 minute. The time between 20% and 80% decay will be :
(A) 20 min (B) 30 min (C) 40 min (D) 25 min
Ans : (C)

A body is projected with a speed u m/s at an angle β with the horizontal. The kinetic energy at the highest point is 3/4th of the
initial kinetic energy. The value of β is :
(A) 30º (B) 45º (C) 60º (D) 120º
Ans : (A)







Rests of the questions are in the attachment, download it freely from here:
Attached Files
File Type: pdf WBJEE Last years solved papers for chemistry.pdf (773.3 KB, 57 views)


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