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1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

Which of the following is correctly matched?

A
Basic oxides $$\Rightarrow \mathrm{In}_2 \mathrm{O}_3, \mathrm{~K}_2 \mathrm{O}, \mathrm{SnO}_2$$
B
Neutral oxides $$\Rightarrow \mathrm{CO}, \mathrm{NO}_2, \mathrm{~N}_2 \mathrm{O}$$
C
Acidic oxides $$\Rightarrow \mathrm{Mn}_2 \mathrm{O}_7, \mathrm{SO}_2, \mathrm{TeO}_3$$
D
Amphoteric oxides $$\Rightarrow \mathrm{BeO}, \mathrm{Ga}_2 \mathrm{O}_3, \mathrm{GeO}$$
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

The correct sequence given below containing neutral, acidic, basic and amphoteric oxide each, respectively, is

A
NO, ZnO, CO$$_2$$, CaO
B
ZnO, NO, CaO, CO$$_2$$
C
NO, CO$$_2$$, ZnO, CaO
D
NO, CO$$_2$$, CaO, ZnO
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The correct order of first ionization enthalpy for the given four elements is :

A
C < F < N < O
B
C < N < F < O
C
C < N < O < F
D
C < O < N < F
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Decrease in size from left to right in actinoid series is greater and gradual than that in lanthanoid series due to

A
5f orbitals have greater shielding effect
B
4f orbitals are penultimate
C
4f orbitals have greater shielding effect
D
5f orbitals have poor shielding effect
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