Which technique is used to obtain a pure, dry sample of lead(II) chloride?
- Amix aqueous lead(II) nitrate and dilute hydrochloric acid $\rightarrow$ filter $\rightarrow$ crystallise and dry the filtrate
- Bmix aqueous lead(II) nitrate and dilute hydrochloric acid $\rightarrow$ filter $\rightarrow$ wash and dry the residue
- Cmix solid lead(II) hydroxide and aqueous sodium chloride $\rightarrow$ filter $\rightarrow$ crystallise and dry the filtrate
- Dmix solid lead(II) hydroxide and aqueous sodium chloride $\rightarrow$ filter $\rightarrow$ wash and dry the residue