1
JEE Main 2025 (Online) 4th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Consider the following plots of $\log$ of rate constant $\mathrm{k}(\log \mathrm{k})$ vs $\frac{1}{\mathrm{~T}}$ for three different reactions. The correct order of activation energies of these reactions is :

JEE Main 2025 (Online) 4th April Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 4 English

A
$\mathrm{Ea}_2>\mathrm{Ea}_1>\mathrm{Ea}_3$
B
$\mathrm{Ea}_1>\mathrm{Ea}_3>\mathrm{Ea}_2$
C
$\mathrm{Ea}_3>\mathrm{Ea}_2>\mathrm{Ea}_1$
D
$\mathrm{Ea}_1>\mathrm{Ea}_2>\mathrm{Ea}_3$
2
JEE Main 2025 (Online) 4th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Match List - I with List - II

List - I
(Separation of)
List - II
(Separation Technique)
(A) Aniline from aniline-water mixture (I) Simple distillation
(B) Glycerol from spent-lye in soap industry (II) Fractional distillation
(C) Different fractions of crude oil in petroleum industry (III) Distillation at reduced pressure
(D) Chloroform-Aniline mixture (IV) Steam distillation

Choose the correct answer from the options given below :

A
(A)-(IV), (B)-(III), (C)-(II), (D)-(I)
B
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
C
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
D
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
3
JEE Main 2025 (Online) 4th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Given below are two statements :

Statement (I) : The first ionisation enthalpy of group 14 elements is higher than the corresponding elements of group 13.

Statement (II) : Melting points and boiling points of group 13 elements are in general much higher than those of corresponding elements of group 14.

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

A
Statement I is correct but Statement II is incorrect
B
Both Statement I and Statement II are incorrect
C
Statement I is incorrect but Statement II is correct
D
Both Statement I and Statement II are correct
4
JEE Main 2025 (Online) 4th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Which among the following compounds give yellow solid when reacted with $\mathrm{NaOI} / \mathrm{NaOH}$ ?

JEE Main 2025 (Online) 4th April Evening Shift Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 3 English

Choose the correct answer from the options given below :

A
(A) and (C) Only
B
(C) and (D) Only
C
(B), (C) and (E) Only
D
(A), (C) and (D) Only
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