By what method can a pure sample of barium sulfate be prepared 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.