Verified Solution • 2025–26 Session
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QJEEM21Chf64e: JEE Main 2021 Chemistry - Class 12 JEEM21Chf64e Solution: Given below are two statements : Statement I : Colourless…
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.
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.
Multiple Choice Options
- A Statement I is true but Statement II is false
- B Statement I is false but Statement II is true
- C Both Statement I and Statement II are false
- D Both Statement I and Statement II are true
Step-by-Step Verified Solution
In presence of luminous flame, blue cupric metaborate is reduced to colourless cuprous metaborate.
If non-luminous flame is present in reaction, cupric metaborate is obtained by heating boric anhydride with copper sulphate.
So, both statements are false.
If non-luminous flame is present in reaction, cupric metaborate is obtained by heating boric anhydride with copper sulphate.
So, both statements are false.