Chemistry · May / June 2016 · Paper 11 · Question 3
How can a pure sample of barium sulfate be obtained from barium carbonate?
- ADissolve it in dilute hydrochloric acid, add dilute sulfuric acid, filter and crystallise.
- BDissolve it in dilute hydrochloric acid, add dilute sulfuric acid, filter and wash.
- CDissolve it in water, add dilute sulfuric acid, filter and crystallise.
- DDissolve it in water, add dilute sulfuric acid, filter and wash.
As printed in the paper
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Correct answer: B. Dissolve it in dilute hydrochloric acid, add dilute sulfuric acid, filter and wash.
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