100+ Chemistry General Knowledge Questions & Answers Pdf - 1

Question: 1

Ethanoic acid is the IUPAC name of

(A) Acetic acid

(B) Formic acid

(C) Propionic acid

(D) Oxalic acid

Ans : A

Acetic acid

Hints :

Molecular Formula for Acetic acid is CH3COOH.

Acetic Acid is also known as Ethanoic acid or methanecarboxylic acid.

Question: 2

The general formula of carboxylic acid is

(A) RCOOH

(B) R-COOH

(C) R-OH

(D) R-CHO

Ans : B

R-COOH

Hints :

The R is a side group made of carbon, hydrogen and other atoms.

Question: 3

The oxide ore of iron is

(A) Cinnabar

(B) Haematite

(C) Pyrolusite

(D) Bauxite

Ans: B

Haematite

Hints :

Chemical Formular Fe2O3

Question: 4

Nitric acid is manufactured by

(A) Haber process

(B) Contact process

(C) Solvay process

(D) Ostwald’s process

Ans: D

Ostwald’s process

Hints :

The Chemical Formula of Nitric Acid is HNO3 [One Hydrogen Atom, One Nitrogen Atom, 3 Oxygen Atoms].

Nitric acid is used in the production of ammonium nitrate for fertilizers, making plastics, and in the manufacture of dyes.

Question: 5

Hydrogen sulphide gas has

(A) Pungent smell

(B) Smell

(C) Fruity smell0

(D) Rotten egg smell

Ans: D

Rotten egg smell

Hints :

The Chemical formula for Hdyrogen Sulphide is H2S.

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