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NEET UG CHEMISTRY MCQ: SOLUTIONS

1 Easy

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Application +4 | -1

X

is dissolved in water. Maximum boiling point is observed when

X

is ….(

0.1\;M

each)

View answer and explanation

Correct option: B

BaC{l_2}

Option B (

BaC{l_2}

) is correct because it dissociates into 3 ions, resulting in the highest van't Hoff factor and thus the maximum boiling point elevation.

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Reason: Isotonic solutions have equal osmotic pressure at constant temperature. 0.2 molal aqueous solution of a monobasic acid is 60% ionised. If Kb for water is

0.52\,K\,kg\,mo{l^{ - 1}}

then the boiling point of the solution will be The vapour pressures of pure liquids

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B

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B

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{K_f}

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