1
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

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

Assertion : Boric acid is a weak acid.

Reason R : Boric acid is not able to release $$\mathrm{H}^{+}$$ ion on its own. It receives $$\mathrm{OH}^{-}$$ ion from water and releases $$\mathrm{H}^{+}$$ ion.

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

A
Both A and R are true and R is the correct explanation of A.
B
Both A and R are true 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.
2
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The metal complex that is diamagnetic is (Atomic number: $$\mathrm{Fe}, 26 ; \mathrm{Cu}, 29)$$

A
$$\mathrm{K}_{3}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]$$
B
$$\mathrm{K}_{2}\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]$$
C
$$\mathrm{K}_{3}\left[\mathrm{Fe}(\mathrm{CN})_{4}\right]$$
D
$$\mathrm{K}_{4}\left[\mathrm{FeCl}_{6}\right]$$
3
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Match List I with List II.

List I

Pollutant
List II

Source
(A) Microorganisms (I) Strip mining
(B) Plant nutrients (II) Domestic sewage
(C) Toxic heavy metals (III) Chemical fertilizer
(D) Sediment (IV) Chemical factory

Choose the correct answer from the options given below :

A
A-II, B-III, C-IV, D-I
B
A-II, B-I, C-IV D-III
C
A-I, B-IV, C-II, D-III
D
A-I, B-IV, C-III, D-II
4
JEE Main 2022 (Online) 26th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct decreasing order of priority of functional groups in naming an organic Question: compound as per IUPAC system of nomenclature is

A
$$-\mathrm{COOH}>-\mathrm{CONH}_{2}>-\mathrm{COCl}>-\mathrm{CHO}$$
B
$$\mathrm{SO}_{3} \mathrm{H}>-\mathrm{COCl}>-\mathrm{CONH}_{2}>-\mathrm{CN}$$
C
JEE Main 2022 (Online) 26th July Evening Shift Chemistry - Basics of Organic Chemistry Question 64 English Option 3
D
$$-\mathrm{COOH}>-\mathrm{COOR}>-\mathrm{CONH}_{2}>-\mathrm{COCl}$$
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