Question

Among al2(so4)3 and (nh4)3po4 which is better coagulating agent for a negative sol

Answer 1

Explanation:

For negative sol we need positive ions.

Al+3 has more positive charge than NH4 +. So Al2(SO4)3 is a better coagulation agent.

Answer 2

$Al_2(SO_4)_3$  is more effective in bringing the coagulation of negatively charged colloid.

Explanation:

According to Hardy Schulze rule, greater the charge on the oppositely charged ion of the electrolyte added, more effective is the coagulation. Thus to coagulate a negatively charged colloid, we must see the positively charged ions.

$Al_2(SO_4)_3$ contains $Al^{3+}$ ions and  $(NH_4)_3PO_4$ contains $NH_4^{+}$ ions.

Thus $Al^{3+}$ bearing the higher positive charge is more effective in bringing the coagulation of negatively charged colloid.

Learn more abou Hardy Schulze rule,

https://brainly.in/question/2822467

https://brainly.in/question/2821898