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Preparation of cabalt Metaborate involve...

Preparation of cabalt Metaborate involves the following steps of reactions:
(i) `Ca_(2)B_(6)O_(11) + Na_(2)CO_(3)(aq) overset("Boiled") to CaCO_(3) "(insoluble)" + Na_(2)B_(4)O_(7) + NaBO_(2)`
(ii) `Na_(2)B_(4)O_(7) overset(Delta)to NaBO_(2) + B_(2)O_(3)`
(iii) `CoO + B_(2) O_(3) overset(Delta) to Co(BO_(2))_(2)`.
(Atomic weight: B=11, Co=59)
Mass of `Ca_(2)B_(6)O_(11)` in kg requried to produce 14.5 kg of `Co(BO_(2))_(2)`, assuming 100% yield of each reaction is

A

250

B

200

C

190

D

150

Text Solution

Verified by Experts

The correct Answer is:
A
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