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Colemanite + Na(2)CO(3)overset(" Fused ...

Colemanite `+ Na_(2)CO_(3)overset(" Fused ")rarr (A)+(B)+CO_(2)`
`underset("solution)((A))+CO_(2)rarr (B)+Na_(2)CO_(3)`
`(B)+conc.HCl rarr NaCl+underset("Acid")((C ))`
`underset("Acid")((C ))+H_(2)O rarr underset("Acid")((D))`
`(D)overset(" strong heating ")rarr (E )`
`(E )+CuSO_(4)overset(" Heated ")underset(" in flame ")rarr underset("Blue coloured compound")((F))`
Compound (D) is

A

`Na_(2)B_(4)O_7`

B

`NaBO_2`

C

`Na_(3)BO_3`

D

NaOH

Text Solution

Verified by Experts

The correct Answer is:
A
`B-Na_(2)B_(4)O_(7)`
`C-H_(2)B_(4)O_7`
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