Top 100+ Basic Chemistry Questions and Answers Pdf - 1
Question: 1
Which one of the following pairs is correctly matched?
(A) Zinc sulphide - Philosopher’s wool
(B) Zinc phosphide - Rat poison
(C) Silver iodide - Horn Silver
(D) Silver chloride - Artificial rain
Ans: B
Zinc phosphide - Rat poison
Question: 2
The sodium salt of a long chain carboxylic acid possessing cleaning action is
(A) A fat
(B) A soap
(C) A detergent
(D) An ester
Ans: C
A detergent
Question: 3
Rectified spirit contains
(A) 18% ethanol
(B) 75% ethanol
(C) 95.6% ethanol
(D) 100% ethanol
Ans: C
95.6% ethanol
Question: 4
The milk is an example of
(A) Air-solution
(B) Colloidal solution
(C) Emulsion
(D) Solution
Ans: C
Emulsion
Question: 5
Sulphur is extracted by
(A) Contact process
(B) Frasch process
(C) Solvay process
(D) Haber process
Ans: B
Frasch process
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