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S-Block Element...

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  • Question 1
    4 / -1

    Which of the following has maximum lattice energy ?

  • Question 2
    4 / -1

    Which of the following pairs of elements possess diagonal relationship ?

  • Question 3
    4 / -1

    A sample of portaland cement contain 23% SiO2 , 3% Al2O3 and 2% Fe2O3 then what would be its silica module (n) ?

  • Question 4
    4 / -1

    For a good quality of cement, the ratio of silica (SiO2) and alumina (Al2O3) must be between...

  • Question 5
    4 / -1

    Chlorophyll and heamoglobin are complex of ‘‘______ ’’ and ‘‘______’’ respectivelly.

  • Question 6
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    Which of the following metal ions plays an important role in muscle contraction ?

  • Question 7
    4 / -1

    White enamel of our teeth is ...

  • Question 8
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    Two mole of magnesium nitride on reacting with an excess of water gives :

  • Question 9
    4 / -1

    Which of the following metal is used in windows of X - ray tubes ?

  • Question 10
    4 / -1

    Which of the following is not a Mg ore ?

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