HSC - রসায়ন ২য় পত্র→অধ্যায়-০৩ঃ পরিমাণগত রসায়ন→All Topics

A Jar test was conducted with alum and it was found that the optimum alum dosage obtained when $\text {50 mL}$ alum solution containing $\text {1.0 gm/L}$ is added into $\text {2 L}$ of water. The concentration of alum dosage was$-$