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Which of the following solution having s...

Which of the following solution having same vapour pressure as 0.3 M glucose solution ?

A

`0.1 M [Co(H_(2)O)_(3)(NO_(2))_(3)]`

B

`0.1 M Na_(2)[Co(H_(2)O)(NO_(2))_(5)]`

C

`0.1 M Na [Co(H_(2)O)_(2)(NO_(2))_(4)]`

D

`0.1 M Na_(3)[Co(NO_(2))_(6)]`

Text Solution

Verified by Experts

The correct Answer is:
B
`Na_(2)[Co(H_(2)O)(NO_(2))_(5)]to 2Na^(+)+[Co(H_(2)O)(NO_(2))_(5)]`
Total no. of ions are 3.
So `= 3xx0.1=0.3 M`
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