Question # 1

According to Boyle's law which parameters give a straight line parallel to x -axis when we plot a graph between

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P and V

P and 1/V

P and PV

V and T

The concept of distribution of velocities among the gas molecules was given by.

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Clausius

Mexwell

Boltzmann

Vander waal

Diamond is bad conductor because.

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It has a tight structure

It has a high density

It is transparent to light

There are o free electros present in the crystal of diamond to conduct electricity.

Which of the following mixtures of liquids show negative deviation

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Methyl alcohol water

Hydrochloric acid water

Carbon di sulphide chloroform

Chlorobenzene bromobenzene

Almost forward reaction is complete when value of Kc is

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very high

Very small

Neither large nor very small

No correlation

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dm⁺⁶mole^-2

mole²dm^-6

Mole dm^-3

Having no units

Which of the hydrogen halide has the highest percentage of ionic character.

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HCl

HBr

HF

HI

Gooch crucible is made of.

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Glass

Paper

Teflon

Procelain

The boiling point of water at the top mount Everest is.

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59^oC

69^oC

83^oC

75^oC

In azeotropic mixture showing positive deviation from Raoult's law, the volume of the mixture is.

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slightly more than the total volume of the components

Slightly less than the total volume of the component

Equal to the total volume of the components

None of these

A cell in which electric current is produced as a result of spontaneous redox reaction is called.

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Electrolytic cell

Galvanic cell

Half cell reaction

Down's cell

Which one of the following has the same number of electrons as an alpha particle.

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H

He

H+

Li+

The number of H2O molecules in 9 grams of ice is

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3.01 x 10²³

6.02 x 10²³

6.02 x 10⁸

12.04 x 10²³

The mass of one mole of electrons is

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1.008 mg

0.55 mg

0.184 mg

1.673 mg

The number of electrons in one mole of hydrogen gas is.

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6.02 x 10²³

12.04 x 10²³

Only two

Indefinite

After 3 half lives of a chemical reaction, the % fraction of the amount left is

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6.25

75

12.5

50

Which of the following molecules contain six bonding electrons.

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CH4

CO2

BF3

H2S

10 g of NaOH has been dissolved per dm3 of solution. The molarity of solution is.

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0.5 M

0.25 M

1 M

2 M

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