Question

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.

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• A. Statement I is false but statement II is true
• B. Statement I is true but statement II is false
• C. Both statement I and statement II are true
• D. Both statement I and statement II are false
  

Answer 1

The correct option is D Both statement I and statement II are false


Statement-I : Cupric metaborate is blue in colour.
Hence statement - I is false

Statement-II : $CuS{O}_4+B_2{O}_3\to Cu(B{O}_2{)}_2$
Cupric metaborate is obtained instead of cuprous metaborate by heating boric anhydride and copper sulphate in a non-luminous flame.
Hence statement - II is false