MEDIUM
Earn 100

gas turns alkaline phenolphthalein solution from:
(a)pink to green
(b)pink to blue
(c)pink to colourless
(d)pink to yellow

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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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Assertion (A): gas is dried by passing through concentrated .
Reason (R): gas reacts with that gives white fumes

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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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In which form of complex, platinum is dissolved in aqua regia?

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