1
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II.

List - I List - II
(A) JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 1 (I) Etard reaction
(B) JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 2 (II) Gatterman-Koch reaction
(C) JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 3 (III) Rosenmund reduction
(D) JEE Main 2025 (Online) 24th January Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English 4 (IV) Stephen reaction

Choose the correct answer from the options given below :

A
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
B
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
C
(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
D
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
2
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

When Ethane-1,2-diamine is added progressively to an aqueous solution of Nickel (II) chloride, the sequence of colour change observed will be:

A
Pale Blue $\rightarrow$ Blue $\rightarrow$ Green $\rightarrow$ Violet
B
Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet $\rightarrow$ Green
C
Green $\rightarrow$ Pale Blue $\rightarrow$ Blue $\rightarrow$ Violet
D
Violet $\rightarrow$ Blue $\rightarrow$ Pale Blue $\rightarrow$ Green
3
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

For hydrogen atom, the orbital/s with lowest energy is/are :

(A) $\mathrm{4 s}$

(B) $3 \mathrm{p}_x$

(C) $3 \mathrm{~d}_{x^2-y^2}$

(D) $3 \mathrm{~d}_{z^2}$

(E) $4 \mathrm{p}_z$

Choose the correct answer from the options given below :

A
(A) only
B
(B) only
C
(B), (C) and (D) only
D
(A) and (E) only
4
JEE Main 2025 (Online) 24th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Identify correct statement/s :

(A) $-\mathrm{OCH}_3$ and $-\mathrm{NHCOCH}_3$ are activating group.

(B) $\quad-\mathrm{CN}$ and -OH are meta directing group.

(C) -CN and $-\mathrm{SO}_3 \mathrm{H}$ are meta directing group.

(D) Activating groups act as ortho - and para directing groups.

(E) Halides are activating groups.

Choose the correct answer from the options given below :

A
$(A),(C)$ and (D) only
B
$(A),(B)$ and $(E)$ only
C
(A) and (C) only
D
(A) only
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