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P - Block Eleme...

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  • Question 1
    4 / -1

    The final acid obtained during the manufacture of H2SO4 , by contact process is

  • Question 2
    4 / -1

    A substance on treatment with dilute H2SO4 liberates a colourless gas which produces (i) turbidity with baryta water and (ii) turns acidified dichromate solution green. These reaction indicate the presence of

  • Question 3
    4 / -1

    When Sulphur is boiled with Na2SO3 Solution, the compound formed is

  • Question 4
    4 / -1

    Oxygen is more electronegative than Sulphur. Yet H2S is acidic while H2O is neutral. This is because

  • Question 5
    4 / -1

    The acid which has a peroxy linkage is

  • Question 6
    4 / -1

    Identify the incorrect statement with respect to ozone :

  • Question 7
    4 / -1

    Acidified solution of sodium thiosulphate are unstable because in thiosulphate

  • Question 8
    4 / -1

    A certain compound (X) when treated with copper sulphate solution yields a brown precipitate. On adding hypo solution, the precipitate turns white. The compound is

  • Question 9
    4 / -1

    H2S reacts with O2 to form?

  • Question 10
    4 / -1

    Sodium thiosulphate is prepared by

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