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Hydrogen Test - 2

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Hydrogen Test - 2
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Weekly Quiz Competition
  • Question 1
    1 / -0

    Hydrogen exists in

    Solution

    Hydrogen exists in + 1, - 1 & zero oxidation state.

     

  • Question 2
    1 / -0

    Which of the following resemble hydrogen in its properties?

    Solution

    Both hydrogen and alkali metals have one electron in their valence shell. So they behave similarly.

     

  • Question 3
    1 / -0

    The following question has four choices out of which ONLY ONE is correct.

    Hydrogen behaves as an oxidising agent when it reacts with

    Solution

    Hydrogen behaves as an oxidising agent when it reacts with calcium to give calcium hydride as follows:

    Ca + H2 → CaH2

     

  • Question 4
    1 / -0

    The following question has four choices out of which ONLY ONE is correct.

    Electrolysis of a hydrochloric acid solution produces

    Solution

    Electrolysis of a hydrochloric acid solution produces oxygen at anode and hydrogen at cathode.
    The products of electrolysis of dilute solutions of all acids are same as the products of electrolysis of water.

     

  • Question 5
    1 / -0

    Hydrogen is

    Solution

    Hydrogen can gain electrons as well lose electrons. So it is electropositive as well as electronegative

     

  • Question 6
    1 / -0

    The ionisation energy of hydrogen is

    Solution

    Ionisation energy of hydrogen is very high. It is comparable to that of halogens.

     

  • Question 7
    1 / -0

    Heavy water is a form of water where the hydrogen atoms are the isotope variant deuterium. It is also called deuterium oxide.

    Which of the following statements regarding deuterium oxide is not correct ?

    Solution

    The option (4) is incorrect because heavy water is not safe to drink.Drinking just a few milliliters or anything up to a regular glass of water might not actually have any noticeable effects.

    However, any amount larger than that would cause dizziness probably because heavy water has a greater density than regular water and can affect the fluid in the inner ear which is essential for keeping the balance.

     

  • Question 8
    1 / -0

    Heavy water is

    Solution

    Heavy water is deuterium oxide, D2O.

     

  • Question 9
    1 / -0

    Nascent hydrogen is chemically more reactive than molecular hydrogen because it

    Solution

    Nascent hydrogen has one unpaired electron in its valence shell. So, it is very reactive and undergoes several reactions to make a variety of compounds.

     

  • Question 10
    1 / -0

    The absorption of hydrogen by platinum is known as

    Solution

    The absorption of hydrogen by platinum is known as occlusion.

     

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