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Name a non-metal having a very high melt...

Name a non-metal having a very high melting point.

A

Graphite

B

Bromine

C

Sodium

D

Potassium

Text Solution

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The correct Answer is:
A
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Write one example of each of the following: (a) A metal and a non-metal which are liquids at room temperature. (b) A metal which is very soft and a non-metal which is very hard. (c) A metal which has very low melting point and a non-metal which has very high melting point.

Fill in the following blanks with suitable words: (a). Magnesium liberates_____gas on reacting with hot boiling water. (b). The white powder formed when magnesium ribbon burns in oxygen is of______ (c). Ordinary aluminium strips are not attacked by water because of the presence of a layer of ______ on the surface of aluminium. (d). A metal having low melting point is_____ but a non-metal having very high melting point is_____ (e). Calcium is a ______reaactive metal than sodium.

Knowledge Check

  • The metal-having highest melting point is

    A
    Chromium
    B
    Tungsten
    C
    Diamond
    D
    Silver

  • The alkali metal having highest melting point is

    A
    Li
    B
    Na
    C
    Cs
    D
    Rb

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    Magnalium has a very low melting point.

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