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Given below are two statements : Statement I : Colourless cupric metaborate is reduced to cuprous metaborate in a luminous flame. Statement II : Cuprous metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame. In the light of the above statements, choose the most appropriate answer from the options given below.

1. Statement I is true but Statement II is false
2. Statement I and Statement II are false
3. Statement I is false but Statement II is true
4. Both Statement I and Statement II are true

Correct answer: Statement I and Statement II are false

Solution

Both statements are incorrect because cupric metaborate does not reduce to cuprous metaborate in a luminous flame, and the synthesis of cuprous metaborate does not involve heating boric anhydride and copper sulfate in a non-luminous flame.

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