1
JEE Main 2023 (Online) 29th January Morning Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

List I List II
Reaction Reagents
(A) Hoffmann Degradation (I) $$\mathrm{Conc. KOH}$$, $$\Delta$$
(B) Clemenson reduction (II) $$\mathrm{CHCl_3,NaOH/H_3O}$$$$^ \oplus $$
(C) Cannizaro reaction (III) $$\mathrm{Br_2,NaOH}$$
(D) Reimer-Tiemann Reaction (IV) $$\mathrm{Zn-Hg/HCl}$$

Choose the correct answer from the options given below :

A
(A) - III, (B) - IV, (C) - I, (D) - II
B
(A) - II, (B) - IV, (C) - I, (D) - III
C
(A) - III, (B) - IV, (C) - II, (D) - I
D
(A) - II, (B) - I, (C) - III, (D) - IV
2
JEE Main 2023 (Online) 25th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

'A' in the given reaction is

JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 25 English

A
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 25 English Option 1
B
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 25 English Option 2
C
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 25 English Option 3
D
JEE Main 2023 (Online) 25th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 25 English Option 4
3
JEE Main 2023 (Online) 25th January 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 : Butylated hydroxy anisole when added to butter increases its shelf life.

Reason R : Butylated hydroxy anisole is more reactive towards oxygen than food.

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

A
A is correct but R is not correct
B
Both A and R are correct but R is NOT the correct explanation of A
C
Both A and R are correct and R is the correct explanation of A
D
A is not correct but R is correct
4
JEE Main 2023 (Online) 25th January Morning 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 : Acetal / Ketal is stable in basic medium.

Reason R : The high leaving tendency of alkoxide ion gives the stability to acetal/ketal in basic medium.

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

A
A is false but R is true.
B
Both A and R are true but R is NOT the correct explanation of A
C
Both A and R are true and R is the correct explanation of A
D
A is true but R is false.
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