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Hydrogen Test -...

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  • Question 1
    1 / -0

    When sodium peroxide is treated with dilute sulphuric acid, we get.

  • Question 2
    1 / -0

    Hydrogen peroxide is obtained by the electrolysis of.......

  • Question 3
    1 / -0

    Which of the following reactions is an example of use of water gas in the synthesis of other compounds?

  • Question 4
    1 / -0

    Which of the following statements is correct?

    (i) Elements of group 15 form electron deficient hydrides.

    (ii) All elements of group 14 form electron precise hydrides.

    (iii) Electron precise hydrides have tetrahedral geometries.

    (iv) Electron rich hydrides can act as Lewis acids.

  • Question 5
    1 / -0

    Which of the following statements is correct?

    (i) Hydrides of group 13 act as Lewis acids.

    (ii) Hydrides of group 14 are electron deficient hydrides.

    (iii) Hydrides of group 14 act as Lewis acids.

    (iv) Hydrides of group 15 act as Lewis bases.

  • Question 6
    1 / -0

    Match the terms in Column I with the relevant item in Column II.

    Column I Column II
    (i) Electrolysis of water produces (a) atomic reactor
    (ii) Lithium aluminum hydride is used as (b) polar molecule
    (iii) Hydrogen chloride is a (c) recombines on metal surface to generate high temperature
    (iv) Heavy water is used in (d) reducing agent
    (v) Atomic hydrogen (e) hydrogen and oxygen

  • Question 7
    1 / -0

    Which of the following statements is correct?

    (i) Metallic hydrides are deficient of hydrogen.

    (ii) Metallic hydrides conduct heat and electricity.

    (iii) Ionic hydrides do not conduct electricity in solid state.

    (iv) Ionic hydrides are very good conductors of electricity in solid state.

  • Question 8
    1 / -0

    In the following questions a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct option out of the choices given below each question.

    Assertion (A): Some metals like platinum and palladium, can be used as storage media for hydrogen.

    Reason (R): Platinum and palladium can absorb large volumes of hydrogen.

  • Question 9
    1 / -0

    Match the items in Column I with the relevant item in Column II.

    Column I Column II
    (i) Hydrogen peroxide is used as a (a) zeolite
    (ii) Used in Calgon method (b) perhydrol
    (iii) Permanent hardness of hard water is removed by (c) sodium hexametaphosphate
      (d) propellant

  • Question 10
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    Which of the following ions will cause hardness in water sample?

  • Question 11
    1 / -0

    Which of the following compounds is used for water softening?

  • Question 12
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    Elements of which of the following group(s) of periodic table do not form hydrides?

  • Question 13
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    Only one element of forms hydride.

  • Question 14
    1 / -0

    Which of the following reacts easily with \(H_2O\) to form hydrogen

  • Question 15
    1 / -0

    Which of the following metal evolves hydrogen on reacting with cold dilute \(HNO_3\)?

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