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1
JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Which one of the following chemical agent is not being used for dry-cleaning of clothes?
A
H2O2
B
CCl4
C
Liquid CO2
D
Cl2C = CCl2
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Thiamine and pyridoxine are also known respectively as :
A
Vitamin B2 and Vitamin E
B
Vitamin E and Vitamin B2
C
Vitamin B6 and Vitamin B2
D
Vitamin B1 and Vitamin B6
3
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Green chemistry in day-to-day life is in the use of :
A
Chlorine for bleaching of paper
B
Large amount of water alone for washing clothes
C
Tetrachloroethene for laundry
D
Liquified CO2 for dry cleaning of clothes
4
JEE Main 2021 (Online) 18th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Match List - I with List - II :

List - I
(Class of Chemicals)		 List - II
(Example)
(a) Antifertility drug (i) Meprobamate
(b) Antibiotic (ii) Alitame
(c) Tranquilizer (iii) Norethindrone
(d) Artificial Sweetener (iv) Salvarsan


Choose the most appropriate match :
A
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
B
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
C
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
D
(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
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