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

Match List-I with List-II :

List-I
(Reaction)
List-II
(Product formed)
(a) Gabriel synthesis (i) Benzaldehyde
(b) Kolbe synthesis (ii) Ethers
(c) Williamson synthesis (iii) Primary amines
(d) Etard reaction (iv) Salicylic acid

Choose the correct answer from the options given below :

A
(a) - (iii), (b) - (iv), (c) - (ii), (d) - (i)
B
(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)
C
(a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)
D
(a) - (iv), (b) - (iii), (c) - (i), (d) - (ii)
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

If first ionization enthalpies of elements X and Y are 419 kJ mol$$-$$1 and 590 kJ mol$$-$$1, respectively and second ionization enthalpies of X and Y are 3069 kJ mol$$-$$1 and 1145 kJ mol$$-$$1, respectively. Then correct statement is :

A
Both X and Y are alkaline earth metals
B
X is an alkali metal and Y is an alkaline earth metal
C
X is an alkaline earth metal and Y is an alkali metal
D
Both X and Y are alkali metals
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

The incorrect statement about denaturation of proteins is :

A
Uncoiling of the helical structure takes place
B
It results due to change of temperature and/or pH
C
It results in loss of biological activity of proteins
D
A protein is formed from amino acids linked by peptide bonds
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Four gas cylinders containing He, N2, CO2 and NH3 gases separately are gradually cooled from a temperature of 500 K. Which gas will liquify first?

(Given Tc in K $$-$$ He : 5.3, N2 : 126, CO2 : 304.1 and NH3 : 405.5)

A
NH3
B
He
C
N2
D
CO2
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