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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