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The most effective electrolyte for the c...

The most effective electrolyte for the coagulation of `As_2S_3` Sol is

A

`Ba^(2+)`

B

`Na^(+)`

C

`PO_4^(3-)`

D

`AI^(3+)`

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VMC MODULES ENGLISH-SURFACE CHEMISTRY-LEVEL-1
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  12. The colour of sky is due to

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