Engineer & Medical

Environmental Chemistry question bank (Chemistry)

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Q1.

Match List I with List II.

  List-I   List-II
A Sulphate I Pesticide
B Fluoride II Bending of bones
C Nicotine III Laxative effect
D Sodium arsinite IV Herbicide

Choose the correct answer from the options given below

(A)
 A-II,B-III,C-IV,D-I
(B)
A-III,B-II,C-I,D-IV
(C)
A-IV,B-III,C-II,D-I
(D)
A-III,B-II,C-IV,D-I
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Q2.

What is the percentage atom economy when formula weight of product obtained is 70 u and the sum of formula weight of reactant is 140 u ?

(A)
$30 \%$
(B)
$35 \%$
(C)
$50 \%$
(D)
$75 \%$
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