Question # 1

If absolute temperature of gas is doubled and the pressure is reduced to one half, the volume of the gas will.

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Remain unchanged

Increase four times

Reduce to 1/4

Be doubled

Electrode of the lead storage battery are immersed in dilute H2SO4 which has strength by mass

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100%

98%

30%

10%

Which of the following wave properties is inversely proportional to the energy for electromagnetic radiations

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Frequency

Wave number

Velocity

Wave length

The molal boiling point constant is the ration of the elevation in boiling point to

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Molarity

Molality

Mole fraction of solvent

Mole fraction of solute

The nature of positive rays depends on

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The nature of electrode

The nature of discharge tube

The nature of residual gas

All of the above

The molecular shape of SO3 is.

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Triangular planar

Tetrahedral

Pyramidal

Linear

The number of bonds in oxygen molecules.

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One sigma and One pi

One sigma and two Pi

Three sigma only

Two sig and two pi

De Broglie equation treats electron to be.

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A particle

Wave

Both particle and wave

None of these

An azeotropic mixture of two liquids boils at lower temperature than either of them when.

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It is saturated

It shows positive deviation from Raoult's law

It shows negative deviation from Raoult's law

It is metastable

An aqueous solution of ethanol is water has vaporu pressure.

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Equal to the of water

Equal to that of ethanol

More than that of H2O

Less than that of water

In the ground state of an atom, the electron is present

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In the nucleus

In the second shell

Nearest to the nucleus

Farthest from the nucleus

The separation of the different isotopes in the mass spectrometer is done on the basis of

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Different amounts of positive changes

Charge e/m value different amounts of negative changes

Different m/e value

Velocities of the ions

The nature of copper crystals is

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Metallic

Ionic

Covalent

Molecular

pH of rain water.

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7

Slightly basic

slightly acidic

Highly basic

In mass spectrometry, ions are separated on the basis of.

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Masses only

Charge only

Change to mass ratio

Mass to charge ratio

The power of which the concentration of a substance appears in the rate expression is known as

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order of reaction with respect to that substance

Rate of reaction

Order of reaction

Molecularity of reaction

The effect of temperature on equilibrium was studied by

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Lewis

Van der wall

Arrhenius

Vant hoff

The rate of reaction

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Increases

Decreases

Remains the same

May decrease of increase

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