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Q.

A silvery-white metal X taken in the form of a ribbon, when ignited burns in air with a dazzling white flame to form a white powder Y. When water is added to powder Y, it dissolves partially to form another substance Z. Z is a strong base.  What could metal X be?

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a

Copper

b

Magnesium

c

Iron

d

Gold

answer is C.

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Detailed Solution

Magnesium burns with a dazzling white flame.

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