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Hydrogen Test -...

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  • Question 1
    1 / -0

    Which of the following processes will produce permanent hard water?

  • Question 2
    1 / -0

    The ionisation energy of hydrogen is

  • Question 3
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    When a substance A reacts with H2O, it produces a combustible gas B and solution of C in water. When another substance D reacts with this solution of C, it produces the same gas B on warming. But D can produce the same gas B on reaction with dil. H2SO4 at room temperature. A imparts golden yellow colour to Bunsen flame. A, B, C and D respectively are

  • Question 4
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    On shaking H2O2 with acidified potassium dichromate and ether, ethereal layer becomes

  • Question 5
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    For the laboratory preparation of H2O2,

  • Question 6
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    Which of the following substances is formed when dihydrogen reacts with CO at 700 K in the presence of ZnO/Cr2O3 (catalyst)?

  • Question 7
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    How many hydrogen bonds are formed by one water molecule in ice?

  • Question 8
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    Which of the following are the products of the reaction of aluminium with boiling water?

  • Question 9
    1 / -0

    Which of the following is used as a moderator in nuclear reactors?

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