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Basic Chemistry Questions | Chemistry General Knowledge

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Chemistry General Knowledge for ECAT and MCAT Entry Tests | MCQs of Chemistry with Answers | Chemistry Exam Questions and Answers

This post contains Basic Chemistry Questions for PPSC, NTS, CSS, FPSC, PMS, OTS, PTS tests and interviews. This is the 8th and last post of Chemistry MCQs 1st series. MCQs are taken from Caravan Comprehensive Book. FSC students can practice these Chemistry Exams Questions with answers for ECAT and MCAT test preparation. For more Chemistry General Knowledge Questions Go here.

Basic Chemistry Questions for PPSC, NTS, CSS, FPSC, PMS, OTS, PTS Tests and Interviews

MCQs are starting from No.106. Previous Quiz is Here.

106. Permanent hardness of water can be removed by adding________.

(a) Potassium permanganate
(b) Chlorine
(c) Bleaching powder
(d) Washing soda

(d) Washing soda

107. The first synthetic fiber made by man was_____.

(a) Rayon
(b) Nylon
(c) Polyester
(d) Terrycott

(b) Nylon

108. Gypsum is added to cement clinker to_______.

(a) Increase the tensile strength of cement
(b) Bind the particles of calcium silicate
(c) Decrease the rate of setting of cement
(d) Facilitate the formation of colloidal gel

(c) Decrease the rate of setting of cement

109. Production of chlorofluorocarbons (CFC) gas is used in which of the following domestic products?

(a) Television
(b) Tube-light
(c) Cooking gas
(d) Refrigerator

(d) Refrigerator

110. In fireworks, the green flame is produced because of ____________.

(a) Mercury
(b) Sodium
(c) Potassium
(d) Barium

(d) Barium

111. Mixture of two metals is called________.

(a) Dispersion
(b) Alloy
(c) Mouse
(d) Hard Drive

(b) Alloy

112. Dynamite was discovered by_______.

(a) Daimler
(b) Mosely
(c) Alfred Nobel
(d) Freud

(c) Alfred Nobel

113. What is the chemical combination of laughing gas?

(a) Helium and Nitrogen
(b) Nitrogen and Hydrogen
(c) Nitrogen and Oxygen
(d) Hydrogen and Oxygen

(c) Nitrogen and Oxygen

114. Which of the following is the highest element of the periodic table?

(a) Nitrogen
(b) Carbon dioxide
(c) Hydrogen
(d) Oxygen

(c) Hydrogen

115. Mixing of which material makes rubber more flexible?

(a) Graphite
(b) Marble powder
(c) Sulphur
(d) Potassium permanganate

(c) Sulphur

116. Which is the smallest unit of protein?

(a) Fatty acid
(b) Glycerol
(c) Amino Acid
(d) Calcium

(c) Amino Acid

117. When heavy and unstable elements split into relatively smaller elements with the release of energy the process is called _______.

(a) Fission
(b) Fusion
(c) Diffusion
(d) Infusion

(a) Fission

118. Name the acid which is common to all acids?

(a) Oxalic
(b) Hydrogen
(c) Carbolic
(d) Sulphuric

(b) Hydrogen

119. What is laughing gas called?

(a) Ferrous chloride
(b) Sulphur dioxide
(c) Ferric hydroxide
(d) Nitrous Oxide

(d) Nitrous Oxide

Here first series of the Chemistry Quizzes ends. Start from the first post here.

If you find any mistake in the post, please inform us in the comment section.

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