Neet chemistry Questions and Answers 2020

NEET Chemistry Questions 2020 which includes all topics. Skkopi provides the twisted questions asked in NEET examination to confuse the students in the final exam. These Chemistry questions help you to crack exam easily!

1.    At room temperature, butane is most likely to be in the

 

a.    Lowest energy conformation

b.    Lowest energy anti conformation

c.    Highest energy Gauche conformation

d.    Lowest energy Gauche conformation

b – At room temperature , butane is most likely to be in the Lowest energy anti conformation at any given time.

2.      Penicillin produced by fungi is an

 

a.    Antiseptic

b.    Analgesic

c.    Antibiotic

d.    Antipyretic

 c – Penicillin produced by fungi is an Antibiotic.

3.      Which of the following statements is not correct?

 

a.    Enzymes catalyse biochemical reactions

b.    Coenzymes reduces the activity of enzymes

c.    Catalyst does not initiate any reaction

d.    Equilibrium constant is not affected by catalyst

 b – Coenzymes increases the activity of enzymes

4.      Interhalogen compounds are divided with the notation ‘X’ and ‘Y’, where ‘X’ represents

 

a.    Less electronegative halogens

b.    More electronegative halogens

c.    Moderate electronegative halogens

d.    The number of halogens

a – Less electronegative halogens because it is bigger than ‘Y’.

5.    Which of the statements is incorrect?

 

a.    Double bonds are shorters

b.    Double bond is a covalent bond between two atoms

c.    Double bonds occur between four bonding electrons

d.    Double bonds occur most commonly between two carbon atoms.

c – Double bonds occur between four bonding electrons

6.      Which acidified solution is readily decolourised by SO2

 

a.    H2SO4

b.    HNO3

c.    KMnO4

d.    K2SO4

c  – Acidified  KMnO4 solution  is readily decolourised by SO2.

7.      Stephens aldehydes synthesis reaction byproduct when gaseous hydrogen chloride added to nitriles is

 

a.    Ammonium chloride

b.    Methyl cyanide

c.    Hydrogen chloride

d.    Tin chloride.

a – The Byproduct of Stephens aldehydes synthesis reaction when  gaseous hydrogen chloride added to nitriles is Ammonium Chloride.

8.      According to Van der Waals force, which of the following statements is incorrect

 

a.    Attraction and repulsion between the molecules or atoms

b.    Attraction and repulsion not occur between intermolecular forces.

c.    Attraction and repulsion between atoms differ from covalent and ionic bond

d.    It is a distance-dependent interaction between atoms or molecules.

b – Attraction and repulsion occur between intermolecular forces.

9.      Which of the following statements is incorrect?

 

a.    An ideal gas consists of a large number of identical molecules.

b.    The volume occupied by the molecules is more compared to the volume occupied by gas.

c.    The molecules obey Newton’s law of motion

d.    The molecules experience force only during collision.

b – The volume occupied by the molecules is negligible compared to the volume occupied by gas.

10.      Which of the following compounds is prepared from Ammonia and Phenol using cumene process?

 

a.    Glycine

b.    Benzoic acid

c.    Acetanilide

d.    Aniline.

d – Aniline can be prepared from ammonia and phenol derived from the cumene process.

Grab NEET 2020 Sample paper PDF which includes twisted questions of Biology, Physics and Chemistry.

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