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S-Block Element...

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  • Question 1
    4 / -1

    Dead burnt plaster is ...

  • Question 2
    4 / -1

    A substance which gives crimson red flame and breaks on heating to give oxygen and a brown gas is ..

  • Question 3
    4 / -1

    Which of the following compounds are readily soluble in water ?

  • Question 4
    4 / -1

    Identify the correct formula of halides of alkaline earth metals from the following.

  • Question 5
    4 / -1

    When water is added to compound (A) of calcium, solution of compound (B) is formed. When CO2 is passed into the solution, it turns milky due to the formation of compound (C). If excess of carbon dioxide is passed into the solution, milkiness disappears due to the formation of compound (D). Identify the compound (D).

  • Question 6
    4 / -1

    Which alkali metal emits longest wavelength light in Flame test ?

  • Question 7
    4 / -1

    Which of the following is not known ?

  • Question 8
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    Which of the following acts as reducing as well as oxidising agent ?

  • Question 9
    4 / -1

    The salt that is added to table salt to make it flow freely in rainy season is ...

  • Question 10
    4 / -1

    The hydration energy of Mg2+ is greater than that of ....

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