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For the coagulation of 200 mL of As2S3 s...

For the coagulation of 200 mL of `As_2S_3` solution, 10 mL of 1 M NaCl is required.What is the coagulating value of NaCl.

A

`200`

B

`100`

C

`50`

D

`25`

Text Solution

Verified by Experts

The correct Answer is:
C
`10 ml` of `1 M` NaCl contains `NaCl=10xx1=10` milli mole
`200 ml` of `As_(2)S_(3)` required NaCl for the coagulation `=10` milli mole
`:. 1000 ml` of `As_(2)S_(3)` required NaCl for the coagulation `=10xx100//200=50` milli mole
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