Important genral science questions for ssc cgl,Chemistry related important General Knowledge questions,Chemistry important questions and answers, Chemistry questions and answers for IAS, RAS, CDS and SSC CGLChemistry related important General Knowledge questions | very important chemistry 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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