" 36.In neutralisation of Kl by AgNOs positive charge is due to absorption of "

Absorption of water by filter paper is due to

When dilute aqueous solution of AgNO_3 (excess) is added to KI solution, positively charged sol of Agl in formed due to adsorption of

When dilute aqueous solution of AgNO_3 (excess) is added to KI solution, positively charged sol of Agl in formed due to adsorption of

Assertion : When KI solution is added to AgNO_(3) solution, negatively charged sol results . Reason : Negative charge of sol is due to preferential adsorption of iodide ions from the dispersion medium.

Addition of an excess solution of AgNO_(3) , to a solution of KI gives a positively charged Agl sol, while addition of an excess solution of KI to a solution of AgNO_(3) , results is a negatively charged Agl sol. Explain with reasons.

Absorption of water by velamen roots is due to