1
JEE Main 2024 (Online) 30th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement - I: Along the period, the chemical reactivity of the elements gradually increases from group 1 to group 18 .

Statement - II: The nature of oxides formed by group 1 elements is basic while that of group 17 elements is acidic.

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

A
Statement I is False but Statement II is true
B
Both Statement I and Statement II are False
C
Statement I is True But Statement II is False
D
Both Statement I and Statement II are True
2
JEE Main 2024 (Online) 30th January Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List I with List II.

List I
Species
List II
Electronic distribution
(A) $$\mathrm{Cr^{+2}}$$ (I) $$\mathrm{3d^8}$$
(B) $$\mathrm{Mn^+}$$ (II) $$\mathrm{3d^34s^1}$$
(C) $$\mathrm{Ni^{+2}}$$ (III) $$\mathrm{3d^4}$$
(D) $$\mathrm{V^+}$$ (IV) $$\mathrm{3d^54s^1}$$

Choose the correct answer from the options given below :

A
(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
B
(A)-(I), (B)-(II), (C)-(III), (D)-(IV)
C
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
D
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
3
JEE Main 2024 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Given below are two statements:

Statement I : Fluorine has most negative electron gain enthalpy in its group.

Statement II : Oxygen has least negative electron gain enthalpy in its group.

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

A
Both Statement I and Statement II are true
B
Both Statement I and Statement II are false
C
Statement I is false but Statement II is true
D
Statement I is true but Statement II is false
4
JEE Main 2024 (Online) 29th January Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The element having the highest first ionization enthalpy is

A
$$\mathrm{C}$$
B
$$\mathrm{Al}$$
C
$$\mathrm{Si}$$
D
$$\mathrm{N}$$
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