1
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

The gas produced by treating an aqueous solution of ammonium chloride with sodium nitrite is :

A
NH3
B
N2
C
N2O
D
Cl2
2
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Fluorine forms one oxoacid.

Reason R : Fluorine has smallest size amongst all halogens and is highly electronegative.

In the light of the above statements, choose the most appropriate answer from the options given below :

A
Both A and R are correct and R is the correct explanation of A.
B
Both A and R are correct but R is NOT the correct explanation of A.
C
A is correct but R is not correct.
D
A is not correct but R is correct.
3
JEE Main 2022 (Online) 27th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II.

List-I
(Anion)
List-II
(gas evolved on reaction with dil.H$$_2$$SO$$_2$$)
(A) CO$${_3^{2 - }}$$ I. Colourless gas which turns lead acetate paper black.
(B) S$$^{2 - }$$ II. Colourless gas which turns acidified potassium dichromate solution green.
(C) SO$${_3^{2 - }}$$ III. Brown fumes which turns acidified KI solution containing starch blue.
(D) NO$${_2^ - }$$ IV. Colourless gas evolved with brisk effervescence, which turns lime water milky.

Choose the correct answer from the options given below :

A
A-III, B-I, C-II, D-IV
B
A-II, B-I, C-IV, D-III
C
A-IV, B-I, C-III, D-II
D
A-IV, B-I, C-II, D-III
4
JEE Main 2022 (Online) 27th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List - I with List - II.

List - I
(Si-Compounds)
List - II
(Si-Polymeric/Other Products
(A) $${(C{H_3})_4}Si$$ (I) Chain Silicone
(B) $$(C{H_3})Si{(OH)_3}$$ (II) Dimeric Silicone
(C) $${(C{H_3})_2}Si{(OH)_2}$$ (III) Silane
(D) $${(C{H_3})_3}Si(OH)$$ (IV) 2D - Silicone

Choose the correct answer from the options given below :

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