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d and f-Block Elements Test - 20
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  • Question 1/5
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    (T) imparts violet colour (V) Red gas (W) Red ppt.

    (W) Red ppt.  white ppt.

    (U)  gas (gives white fumes with HCl)

    sublimes on heating Identify (T) to (Z).

  • Question 2/5
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    The number of moles of acidified KMnO4 required to convert one mole of sulphite ion into sulphate ion is-

  • Question 3/5
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    N2(g) + 3H2 (g)  2NH3(g) ; Haber's process, Mo is used as -

  • Question 4/5
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    Iron becomes passive by..................due to formation of ................

  • Question 5/5
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    Bayer's reagent used to detect olifinic double bond is-

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