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1
JEE Main 2021 (Online) 26th August Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Chalcogen group elements are :
A
Se, Tb and Pu.
B
Se, Te and Po.
C
S, Te and Pm.
D
O, Ti and Po.
2
JEE Main 2021 (Online) 26th August Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The incorrect statement is :
A
Cl2 is more reactive than ClF.
B
F2 is more reactive than ClF.
C
On hydrolysis ClF forms HOCl and HF.
D
F2 is a stronger oxidizing agent than Cl2 in aqueous solution.
3
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Given below are two statement : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : SO2(g) is absorbed to a large extent than H2(g) on activated charcoal.

Reason R : SO2(g) has a higher critical temperature than H2(g).

In the light of the above statements, choose the most appropriate answer from the options given below.
A
Both A and R are correct but R is not the correct explanation of A.
B
Both A and R are correct and R is the correct explanation of A.
C
A is not correct but R is correct.
D
A is correct but R is not correct.
4
JEE Main 2021 (Online) 27th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
Match List - I with List - II :

List - I
(compound)		 List - II
(effect/affected species)
(a) Carbon monoxide (i) Carcinogenic
(b) Sulphur dioxide (ii) Metabolized by pyrus plants
(c) Polychlorinated biphenyls (iii) haemoglobin
(d) Oxides of Nitrogen (iv) Stiffness of flower buds


Choose the correct answer from the options given below :
A
(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
B
(a) - (iv), (b) - (i), (c) - (iii), (d) - (ii)
C
(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)
D
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
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