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Question

If for a sucrose,elevation in boiling point is $${1.0}^{o}C$$,then what will be the boiling point of $$NaCl$$ solution for same molal concentration?


A
1.0oC
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B
2.0oC
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C
3.0oC
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D
4.0oC
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Solution

The correct option is A $${2.0}^{o}C$$
$$\Delta {T}_{b}=i{K}_{b}m$$
For $$NaCl$$ solution, $$i=2$$
$$\therefore$$ for $$NaCl,\Delta {T}_{b}=2$$

Chemistry

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