Hydrogen One Mark Questions

11th Standard

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Chemistry

Time : 00:30:00 Hrs
Total Marks : 10
    10 x 1 = 10
  1. Water gas is

    (a)

    H2O(g)

    (b)

    CO + H2O

    (c)

    CO + H2

    (d)

    CO + N2

  2. Tritium nucleus contains

    (a)

    1 p+0 n

    (b)

    2 p+1 n

    (c)

    1 p + 2 n

    (d)

    none of these

  3. Non-stoichiometric hydrides are formed by

    (a)

    palladium, vanadium

    (b)

    carbon, nickel

    (c)

    manganese, lithium

    (d)

    nitrogen, chlorine

  4. If a body of a fish contains 1.2 g hydrogen in its total body mass, if all the hydrogen is replaced with deuterium then the increase in body weight of the fish will be

    (a)

    1.2 g

    (b)

    2.4 g

    (c)

    3.6 g

    (d)

    \(\sqrt{4.8}\)g

  5. The hardness of water can be determined by volumetrically using the reagent

    (a)

    sodium thio sulphate

    (b)

    potassium permanganate

    (c)

    hydrogen peroxide

    (d)

    EDTA

  6. _____________ is known as heavy hydrogen.

    (a)

    protium

    (b)

    deuterium

    (c)

    tritium

    (d)

    both a and b

  7. Deuterium consist of _____________

    (a)

    one electron, two proton, three neutron

    (b)

    one electron, one proton, one neutron

    (c)

    two electron, one proton, one neutron

    (d)

    three electron, two proton, one neutron

  8. The radioactive isotope of hydrogen is __________

    (a)

    protium

    (b)

    deuterium

    (c)

    tritium

    (d)

    nascent hydrogen

  9. The radioactive isotope used in illumination of wrist watches instead of Radium is ___________

    (a)

    1T3

    (b)

    1D2

    (c)

    10Ne21

    (d)

    2He3

  10. The half life period of Tritium is ___________

    (a)

    12.33 secs

    (b)

    12.33 mins

    (c)

    12.33 hrs

    (d)

    12.33 years

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