JEE Main 2022 (Online) 28th July Morning Shift | Basics of Organic Chemistry Question 89 | Chemistry

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

-1

Among the following marked proton of which compound shows lowest $$\mathrm{pK}_{\mathrm{a}}$$ value?

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

Match List - I with List - II.

	List - I (Mixture)		List - II (Purification Process)
(A)	Chloroform & Aniline	(I)	Steam distillation
(B)	Benzoic acid & Napthalene	(II)	Sublimation
(C)	Water & Aniline	(III)	Distillation
(D)	Napthalene & Sodium chloride	(IV)	Crystallisation

Choose the correct answer from the options given below :

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

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

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

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

JEE Main 2022 (Online) 27th July Morning Shift

MCQ (Single Correct Answer)

-1

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

Assertion A: [6] Annulene, [8] Annulene and cis-[10] Annulene, are respectively aromatic, not-aromatic and aromatic.

JEE Main 2022 (Online) 27th July Morning Shift Chemistry - Basics of Organic Chemistry Question 91 English

Reason R: Planarity is one of the requirements of aromatic systems.

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

Both A and R are correct and R is the correct explanation of A.

Both A and R are correct but R is NOT the correct explanation of A.

A is correct but R is not correct.

A is not correct but R is correct.

JEE Main 2022 (Online) 26th July Evening Shift

MCQ (Single Correct Answer)

-1

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

$$-\mathrm{COOH}>-\mathrm{CONH}_{2}>-\mathrm{COCl}>-\mathrm{CHO}$$

$$\mathrm{SO}_{3} \mathrm{H}>-\mathrm{COCl}>-\mathrm{CONH}_{2}>-\mathrm{CN}$$

$$-\mathrm{COOH}>-\mathrm{COOR}>-\mathrm{CONH}_{2}>-\mathrm{COCl}$$

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