Beakers A, B, and C contain zinc sulphate, silver nitrate, and ferrous sulphate solutions respectively. Copper pieces are added to each beaker. Blue colour will appear in case of:

Beaker A

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Beaker B

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Beaker C

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All the beakers

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Solution

The correct option is B Beaker B
Copper is less reactive than zinc and iron, but is more reactive than silver and displaces silver from its salt solution.

${AgNO}_{3} + Cu \to {CuNO}_{3} + Ag$

Hence, blue colour solution (Copper nitrate) will be formed in the beaker B.

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Beakers A, B, and C contain zinc sulphate, silver nitrate, and ferrous sulphate solutions respectively. Copper pieces are added to each beaker. Blue colour will appear in case of:

The correct option is B Beaker BCopper is less reactive than zinc and iron, but is more reactive than silver and displaces silver from its salt solution. AgNO3+Cu→CuNO3+Ag Hence, blue colour solution (Copper nitrate) will be formed in the beaker B.

The correct option is B Beaker B
Copper is less reactive than zinc and iron, but is more reactive than silver and displaces silver from its salt solution.

${AgNO}_{3} + Cu \to {CuNO}_{3} + Ag$

Hence, blue colour solution (Copper nitrate) will be formed in the beaker B.