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NH(4)CI is used to clean metal surface b...

`NH_(4)CI` is used to clean metal surface because

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The clean surface of the adsorbent provides more area for adsorption. Therefore, exent of adsorption increases.
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Knowledge Check

  • The electrolytic reduction process is used for alkali metals, because:-

    A
    They are strong reducing agent
    B
    They are weak reducing agent
    C
    The are good oxidising agent
    D
    They are available in solid form

  • Washing soap is used for cleaning the clothes , because

    A
    it absorbs dirt
    B
    it increases the surface tension of the solution
    C
    it reduces the surface tension of the solution
    D
    it increases the viscosity of the liquid

  • P_4 O_(10) is not used to dry NH_3 gas because

    A
    `P_(4)O_(10)` reacts with moisture in `NH_(3)`
    B
    `P_(4)O_(10)` is not a drying agent
    C
    `P_(4)O_(10)` is acidic and `NH_(3)` is basic
    D
    `P_(4)O_(10)` is basic and `NH_3` is acidic

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    A gaseous element 'X' is used in the manufacture of bleaching powder. On reaction with hydrogen, 'X' forms a substance 'Y' which after dissolution in water is used to clean metal surfaces. Identify X and Y. Justify.

    A gaseous element X is used in the manufacture of bleaching powder. On reaction with hydrogen X forms a substance Y, which after dissolution in water is used to clean metal surfaces. Identify X and Y. Justify the whole process involved.

    During the process of soldering, the metal surfaces are cleaned using acids. What purpose does this serve and which separation technique is involved in this?

    NH_(4)Cl is acidic, because

    P_(4)O_(10) is not used to dry NH_(3) gas because:

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