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S-1: Colourless cupric metaborate is converted into cuprous metaborate in luminous flame.

S-2: Cuprous metaborate is formed by reacting copper sulphate with boric anhydride heated in non luminous flame.

(1) S1 is true and S2 is false 

(2) S1 is false and S2 is true

(3) Both are false

(4) Both are true.

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1 Answer

(3) Both are false
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