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General Knowledge :: Chemistry

Chemistry - Section 1
Chemistry - section-3
Chemistry - section-4
Chemistry - section-5
Chemistry - section-6
Chemistry - section-7
Chemistry - section-8
Chemistry - section-9
Chemistry - section-10
Chemistry - section-11
Chemistry - section-12
Chemistry - section-13
Chemistry - section-14
Chemistry - section-15
Chemistry - section-16
Chemistry - section-17
Chemistry - section - 2

  1. The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is

    2. A.
    5x/36
    B.
    5x
    C.
    7.2 x
    D.
    x/6

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  2. The major constituent of air is

    3. A.
    nitrogen
    B.
    carbon dioxide
    C.
    oxygen
    D.
    hydrogen

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  3. The main chemical constituent of clay is

    4. A.
    silicon oxide
    B.
    aluminium borosilicate
    C.
    zeolites
    D.
    aluminium silicate

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  4. The mineral containing both magnesium and calcium is

    5. A.
    magnesite
    B.
    calcite
    C.
    carnallite
    D.
    dolomite

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  5. The metal does not give H2 on treatment with dilute HCL is

    6. A.
    Zn
    B.
    Fe
    C.
    Ag
    D.
    Ca

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  6. The number of g-molecule of oxygen in 6.02 x 1024CO molecules is

    7. A.
    1 gram of molecule
    B.
    0.5 gram of molecule
    C.
    5 gram of molecule
    D.
    10 gram of molecule

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  7. The most extensive, commercially useful source of thorium as monazite sand occurs in India at

    8. A.
    Orissa coast
    B.
    Travancore coast
    C.
    West Bengal coast
    D.
    Gujarat coast

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  8. The main active constituent of tea and coffee is

    9. A.
    nicotine
    B.
    chlorophyll
    C.
    caffeine
    D.
    aspirin

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  9. The maximum number of isomers for an alkene with molecular formula C4H8 is

    10. A.
    5
    B.
    4
    C.
    2
    D.
    3

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  10. The hardest form of carbon is

    11. A.
    coke
    B.
    graphite
    C.
    diamond
    D.
    charcoal

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