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

The decreasing order of boiling points of the following alkanes is :

(a) heptane

(b) butane

(c) 2-methylbutane

(d) 2-methylpropane

(e) hexane

Choose the correct answer from the options given below :

A
(a) > (e) > (c) > (b) > (d)
B
(a) > (c) > (e) > (d) > (b)
C
(c) > (d) > (a) > (e) > (b)
D
(a) > (e) > (b) > (c) > (d)
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

The element used for welding metals with high melting points is

A
He
B
Cl2
C
H2
D
Ne
3
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
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

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 12 English Option 2
C
CH3CHO + NH2OH $$\rightleftharpoons$$ CH3CH = N $$-$$ OH + H2O
D
CH3CHO + C6H5NHNH2 $$\rightleftharpoons$$ CH3CH = N $$-$$ NHC6H5 + H2O
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