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Standard XII

Chemistry

Introduction

The normal bo...

Question

The normal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to:

zero

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380 mm of Hg

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760 mm of Hg

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100 mm of Hg

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Solution

The correct option is C 760 mm of Hg
Normal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to atmoshpheric pressure which is normally 760 mm of Hg.

Suggest Corrections

Similar questions

Q. At a particular temperature if vapour pressure of pure liquid A is

100 m m H g

and that of pure liquid B is

300 m m H g

.
Then choose the correct option:

Q. At

80^{o}

C, the vapour pressure of pure liquid

A

250

mm of

H g

and that of pure liquid

B

1000

mm of

H g

. If a solution of

A

and

B

boils at

80^{o}

and

1

atm pressure, the amount of

A

in the mixture is?

(

1

atm

= 760

mm Hg).

Q. At

80^{\circ} C

the vapour pressure of pure liquid A is 250 mm of Hg and that of pure liquid B is 1000 mm of Hg. If a solution of A and B boils at

80^{\circ} C

and 1 atm pressure, the amount of A in the mixture is (1 atm = 760 mm Hg)

Q. The vapour pressure of pure liquids 1 and 2 are

450 m m H g

and

700 m m H g

respectively at

350 K

. At a point when total vapour pressure is

600 m m H g

, choose the correct option(s) :

At $80^{\circ}$ C the vapour pressure of pure liquid ‘A’ is 520 mm Hg and that of pure liq ‘B’ is 1000 mm Hg. If a mixture of both the liquids form an ideal solution which boils at $80^{\circ} C$ and 1 atm pressure, the mole fraction of ‘A’ in the liquid mixture is:

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The normal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to:

The correct option is C 760 mm of HgNormal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to atmoshpheric pressure which is normally 760 mm of Hg.

The correct option is C 760 mm of Hg
Normal boiling point of a liquid is that temperature at which vapour pressure of the liquid is equal to atmoshpheric pressure which is normally 760 mm of Hg.