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Hydrogen Test - 6

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Weekly Quiz Competition
  • Question 1
    1 / -0

    The peroxide that gives H2O2 on treatment with dilute H2SO4 is

    Solution

    Barium peroxide react with sulfuric acid to produce hydrogen peroxide and barium sulfate. BaO2 + H2SO4 → H2O2 + baSO4

  • Question 2
    1 / -0

    Calculate the strength of 5 volume H2O2 solution.

    Solution

    Volume strength = 11.2 x M

    So M =5/11.2= 0.446

    Strength (g/L ) = 0.446 x 34 = 15.17 g/L

  • Question 3
    1 / -0

    Hydrogenation of vegetable oil using nickel as catalyst gives edible fats. Choose the appropriate one given below.

    Solution

    Vanaspati ghee is manufactured from vegetable or seed oil by a process called 'hydrogenation'.

    Vegetable Oil is a viscous liquid, and contains unsaturated fatty acids, upon hydrogenation it is are converted to saturated fatty acids to form vanaspati ghee which is solid/semi solid in nature.

    For quick and easy hydrogenation, catalyst like Ni, Pt which are capable of adsorbing hydrogen are used.

  • Question 4
    1 / -0

    Syngas is mixture of

    Solution

    Synthesis gas or briefly, syngas, is a mixture of carbon monoxide and hydrogen. Syngas can be produced from many sources, including natural gas, coal, biomass, or virtually any hydrocarbon feedstock, by reaction with steam or oxygen. Syngas is a crucial intermediate resource for production of hydrogen, ammonia, methanol, and synthetic hydrocarbon fuels

  • Question 5
    1 / -0

    Reaction of carbon monoxide gas of syngas mixture with steam in the presence of catalyst is called

    Solution

    The water gas shift reaction converts carbon monoxide and water to carbon dioxide and hydrogen. The reaction is catalysed by a number of different base metal catalysts, depending on the operating temperature and levels of poisons in the feedstock.

    CO + H2O ⇌ CO2 + H2

  • Question 6
    1 / -0

    One of the following reaction is used to increase the yield of dihydrogen obtained from the coal gasification reaction.

    Solution

    Reaction is used to increase the yield of hydrogen.

  • Question 7
    1 / -0

    Self-ionization of water is called

    Solution

    In auto-protolysis a proton is transferred between two identical molecules, one of which acts as a Bronsted acid, releasing a proton which is accepted by the other molecule acting as a Bronsted base.

    Auto-protolysis is also called the self-ionization. Auto-protolysis of water is a reaction in which self-ionization of water molecules takes place to produce hydronium ion (H3O+) and hydroxide ion (OH​​​​​-).

    2H2O ⇌ H3O++OH−

  • Question 8
    1 / -0

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

    Solution

    Hydrogen peraoxide is also prepared by the reaction of acid sodium peroxides. Reaction is as follow :

    Na2O2 + H2SO4 → Na2SO4 + H2O2

  • Question 9
    1 / -0

    Elements of which of the following group(s) of periodic table do not form hydrides.

    Solution

    Elements of group 7, 8, 9 of d – block do not form hydrides at all. This inability of metal, of group 7, 8, 9 of periodic table to form hydrides is referred to as hydride gap of d – block.

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