General Science Chemistry Questions for SSC / UPSC Set 4

    General Science  Chemistry Questions for SSC / UPSC MCQs Set 4 Questions And Answers for SSC-CGL, UPPSC, UPSC, NDA, CDS and UPSC Civil Services Prelims Online free practice Quiz  – General Studies

    16 .The first organic compound synthesized in the laboratory was
    A.  Urea
    B.  Uric acid
    C.  Lactic acid
    D.  Glucose
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    17 .Gas used for artificial ripening of fruits is:
    A.  Ethane
    B.  Acetylene
    C.  Propane
    D.  Methane
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    18 .Chromatography technique is used for the separation of
    A.  Small sample of mixture
    B.  Plant pigments
    C.  Dye stuff
    D.  All
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    19 .The gas produced in marshy places due to decomposition of vegetation is
    A.  Carbon monoxide
    B.  Carbon dioxide
    C.  Sulphur dioxide
    D.  Methane
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    20 .Ethanol containing 5% water is known as-
    A.  Absolute alcohol
    B.  Dilute alcohol
    C.  Power alcohol
    D.  Rectified spirit
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    21 .Chemical name of Gammaxane is:
    A.  Aniline
    B.  Toulene
    C.  Benzene hexachloride
    D.  Chloro benzene
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    22 .Power alcohol is -
    A.  Absolute alcohol + Methyle alcohol
    B.  Absoluted alcohol + Petrol
    C.  Rectified alcohol + Petrol
    D.  Denatured alcohol + Petrol
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    23 .What happens when a drop of glycerol is added to crush KMnO4 sprcad on a paper?
    A.  There is a crackling sound
    B.  There is no reaction
    C.  The paper ignites
    D.  There is a violent explosion
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    24 .Which of the following is used as raw material for the manufacture of rayon?
    A.  Coal
    B.  Petroleum
    C.  Cellulose
    D.  Plastic
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    25 .Lemon is sour due to-
    A.  Citric acid
    B.  Tartaric acid
    C.  Oxalic acid
    D.  Acetic acid
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