1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

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
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

Which of the following reactions is not an example for nucleophilic addition-elimination reaction?

A
CH3CHO + NH3 $$\rightleftharpoons$$ CH3CH = NH + H2O
B
NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 16 English Option 2
C
CH3CHO + NH2OH $$\rightleftharpoons$$ CH3CH = N $$-$$ OH + H2O
D
CH3CHO + C6H5NHNH2 $$\rightleftharpoons$$ CH3CH = N $$-$$ NHC6H5 + H2O
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

The product formed from the following reaction sequence is

NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 15 English

A
NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 15 English Option 1
B
NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 15 English Option 2
C
NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 15 English Option 3
D
NEET 2022 Phase 2 Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 15 English Option 4
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

Fluorine is a stronger oxidising agent than chlorine because :

(a) F-F bond has a low enthalpy of dissociation.

(b) Fluoride ion (F$$-$$) has high hydration enthalpy.

(c) Electron gain enthalpy of fluorine is less negative than chlorine.

(d) Fluorine has a very small size.

Choose the most appropriate answer from the options given :

A
(b) and (c) only
B
(a) and (b) only
C
(a) and (c) only
D
(a) and (d) only
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