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1
JEE Main 2022 (Online) 30th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of electron gain enthalpy ($$-$$ ve value) is :

A
O > S > Se > Te
B
O < S < Se < Te
C
O < S > Se > Te
D
O < S > Se < Te
2
JEE Main 2022 (Online) 29th June 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 : The first ionization enthalpy for oxygen is lower than that of nitrogen.

Reason R : The four electrons in 2p orbitals of oxygen experience more electron-electron repulsion.

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

A
Both A and R are are correct and R is the correct explanation of A.
B
Both A and R are are correct but R is NOT the correct explanation of A.
C
A is correct but R is not correct.
D
A is not correct but R is correct.
3
JEE Main 2022 (Online) 28th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List - I with List - II :

List-I (Oxide) List-II (Nature)
(A) $$C{l_2}{O_7}$$ (I) Amphoteric
(B) $$N{a_2}O$$ (II) Basic
(C) $$A{l_2}{O_3}$$ (III) Neutral
(D) $${N_2}O$$ (IV) Acidic

Choose the correct answer from the options given below :

A
(A) - (IV), (B) - (III), (C) - (I), (D) - (II)
B
(A) - (IV), (B) - (II), (C) - (I), (D) - (III)
C
(A) - (II), (B) - (IV), (C) - (III), (D) - (I)
D
(A) - (I), (B) - (II), (C) - (III), (D) - (IV)
4
JEE Main 2022 (Online) 28th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Among the following, basic oxide is :

A
SO3
B
SiO2
C
CaO
D
Al2O3
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