Chemistry-General Knowledge questions and answers Part-3 series #26

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Chemistry-General Knowledge questions and answers

101. The acid present in lemon is

A. lactic acid
B. marlic acid
C. citric acid
D. tartaric acid



102. Rare gases are

A. mono atomic
B. di atomic
C. tri atomic
D. none of the above



103. The term PVC used in the plastic industry stands for

A. phosphavinyl chloride
B. phosphor vanadiu chloride
C. polyvinyl chloride
D. polyvinyl carbobate



104. The alcohol used in the preparation of dynamite is

A. ethyl alcohol
B. glycerol
C. glycol
D. methyl alcohol



105. The element used in lead pencils is

A. zinc
B. lead
C. carbon
D. tin



106. Epsom salt is chemically known as

A. copper sulphate
B. magnesium sulphate
C. ferrous sulphate
D. copper sulphate



107. Calcium sulphate is known as

A. epsom salt
B. gypsum salt
C. blue vitriol
D. potash alum



108. Oil of vitriol is

A. nitric acid
B. hydrochloric acid
C. phosphoric acid
D. sulphuric acid



109. Which is used to produce artificial rain?

A. sand
B. copper oxide
C. silver iodide
D. silver nitrate



110. DDT is an

A. explosive
B. antibiotic
C. enzyme
D. insecticide



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