(i) Blue cupric metaborate is reduced to colourless cuprous metaborate in a luminous flame
(ii) Cupric metaborate is obtained by heating boric anhydride and copper sulphate in a non-luminous flame.
JEE Main 2021 — Chemistry Inorganic Chemistry
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.
Held on 24 Feb 2021 · Verified 6 Jul 2026.
Statement I is false but Statement II is true
Both Statement I and Statement II are false
Both Statement I and Statement II are true
Statement I is true but Statement II is false
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