General Principles and processes of Isolation of Elements
medium

$2\,hours$ માં $As _2 S _3$ દ્વાવણના $200\,mL$ ને સ્કંદન કરવા માટે $0.5\,M\,NaCl$ ના $20\,mL$ની જરૂર પડે છે. $NaCl$ નું સ્કંદન મૂલ્ય $.....$ છે.

A

$50$

B

$40$

C

$30$

D

$20$

(JEE MAIN-2023)

Solution

Coagulating value is required milimole of electrolyte needed to coagulate $1 L$ sol in 2 hours.

$\text { Coagulating value }=\frac{20 \times 0.5}{200} \times 1000=50$

Standard 12
Chemistry

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