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Earn 100

is the anhydride of:
(a)
(b)
(c)
(d)

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Important Questions on The p-Block Elements
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and are used as bleaching agents.
salts are used as detergents.
disproportionates in alkaline medium.
is oxidized in acidic medium.

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In the following reactions, products and , respectively, are:

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A. Hydrochloric acid is added to sodium sulphide.
B. Concentrated sulphuric acid is added to a mixture of sodium chloride and manganese dioxide.

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