Chemistry
Grade-8
Easy

Question

Which of the following picture does not depict the uses of wood charcoal?

hintHint:

This is used to make ornaments.

The correct answer is:


    The correct option is b)Diamond.
    Charcoal is obtained as a residue of the destructive distillation of wood, so the products are: Liquid products - wood vinegar and wood tar. Gas products - wood gas. Residue – charcoal.
    It is used to make gunpowder and as a fuel.

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    Sugar charcoal can also be prepared by the following.

    The correct option is d)By dehydration of cane sugar.
    Sugar charcoal is made by destructive distillation of sugar cane sugar. It is also made by dehydrating sugar in the presence of concentrated sulfuric acid. Sulfuric acid is a dehydrating agent, so it absorbs water from the sugar, leaving behind a black carbon residue.

    Sugar charcoal can also be prepared by the following.

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    The correct option is d)By dehydration of cane sugar.
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    Identify the substance known as Ivory black from the following.

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    Identify the compounds W, X, Y and Z in the above paragraph:

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    Which of the substances are not used as a fuel?

    The correct option is c)Lignite.
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    Which of the substances are not used as a fuel?

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    The correct option is c)Lignite.
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