In a mixture of sodium nitrate and chalk , the sodium nitrate can be recovered by the process of a) filtration b) sievingc) decantation followed by filtration d) dissolving in water followed by filtration and it's evaporation

In a mixture of sodium nitrate and chalk , the sodium nitrate can be r

1.	In a mixture of sodium nitrate and chalk , the sodium nitrate can be recovered by the process of a) filtration b) sievingc) decantation followed by filtration d) dissolving in water followed by filtration and it's evaporation
Answer» TION:I THINK it's ANSWER can be filtration.because after reaction a precipitate will be formed.