Question

If A + MX- AX+ M and AX is green coloured solutions, then A and MX respectively are

Answer 1

Given, A + MX - AX+ M and AX is green coloured solutions, then A and MX respectively are Fe and CuSO4.

• Since AX is green coloured solution. (given)
• Fe2+ ions have a pale green colour.
• FeSo4 has a bluish-green colour.
• Since Fe is more reactive than Cu and Cu has a lower reduction potential than Fe, so the MX is CuSO4.
• Now, the equation is,
• Fe + CuSO4 -> FeSO4 + Cu

Answer 2

A is Fe elements and MX is copper sulphate ion.

Explanation:

• The reaction given here is a displacement reaction.

• The reaction involves the displacement of M from the salt of M and replacement of M by A ions.

• So A must be placed higher above M in the activity series.

• Here the colour of the AX salt is green.

• So A must be iron.

• And the colour or MX is blue.

• So MX must be copper sulphate.

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