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7th August 2014, 03:58 PM
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Re: WBJEE Medical Questions & Answers

Below Questions & Answers of Chemistry subject of WBJEE (West Bengal Joint Entrance Examination) is given.

(S)-(+)-lactic acid and (R)-(–)-lactic acid are nonsuperposable mirror images of each other. They are called
A. diastereomers
B. tautomers
C. enantiomers
D. structural isomers

Arrange the following in decreasing order of reactivity with HCN. HCHO, CH3CHO, CH3COCH3
A. HCHO > CH3CHO > CH3COCH3
B. CH3CHO > HCHO > CH3COCH3
C. CH3COCH3 > CH3CHO > HCHO
D. CH3CHO > CH3COCH3 > HCHO=

Which of the following species has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni2+
D. Cu+

Which of the following sets of quantum numbers (n,l,ml,ms) correctly represents an electron in the 5f subshell?
A. 5, 3, 4, +½
B. 5, 2, 1, 0
C. 5, 3, −2, +½
D. 5, 5, 2, −½
West Bengal Joint Entrance Examination Chemistry Questions & Answers





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