1
JEE Main 2025 (Online) 7th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Match the List I with List II.

List - I
Molecule/Ion
List - II
Bond pair : lone pair
(on the central atom)
(A) $\mathrm{ICl}_2^{-}$ (I) $4:2$
(B) $\mathrm{H}_2 \mathrm{O}$ (II) $4:1$
(C) $\mathrm{SO_2}$ (III) $2:3$
(D) $\mathrm{XeF_4}$ (IV) $2:2$

Choose the correct answer from the options given below:

A
A-IV, B-III, C-II, D-I
B
A-III, B-IV, C-I, D-II
C
A-II, B-I, C-IV, D-III
D
A-III, B-IV, C-II, D-I
2
JEE Main 2025 (Online) 7th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

The first transition series metal ' $M$ ' has the highest enthalpy of atomisation in its series. One of its aquated ion $\left(\mathrm{M}^{\mathrm{n}+}\right)$ exists in green colour. The nature of the oxide formed by the above $\mathrm{M}^{\mathrm{n}+}$ ion is:

A
basic
B
neutral
C
amphoteric
D
acidic
3
JEE Main 2025 (Online) 7th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

The number of valence electrons present in the metal among $\mathrm{Cr}, \mathrm{Co}, \mathrm{Fe}$ and Ni which has the lowest enthalpy of atomisation is :

A
10
B
6
C
9
D
8
4
JEE Main 2025 (Online) 7th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Which of the following is the correct IUPAC name of given organic compound (X)?

JEE Main 2025 (Online) 7th April Morning Shift Chemistry - Basics of Organic Chemistry Question 7 English

A
4-Bromo-3-methylbut-2-ene
B
1-Bromo-2-methylbut-2-ene
C
3-Bromo-3-methylprop-2-ene
D
2-Bromo-2-methylbut-2-ene
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