Question # 1

The overall energy change during the Cannot cycle to.

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Equal to zero

Equal to Q

Equal to W

Maximum

The flow of solvent into a solution when two are separated by a semi -permeable membrane is called.

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Mixing

Effusion

Diffusion

Osmosis

In a one -component system the maximum number of phase that can consist in equilibrium is.

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1

2

3

4

The volume of a given mass of gas at constant temperature varies inversely with the pressure. This is a statement of.

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Charlea's law

Avogadro's law

Boyle's law

Dalton 's law

Which of the following is an example of molecular solids.

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MgO

ZnO

Ice

Graphite

The number of formula weight of the solute dissolved per dm3 of the solution is called.

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Mole fraction

Normality

Formality

Molaiity

The magnetic quantum number (m) specifies the individual orbital in a Sub shell for a given l, m can be.

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l,l- l........-1

l........2, l -3.......-2l

l-l-2,..........-l

l-2,l-4, ............-4l

The reverse of photo chemical reaction is called.

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Phosphorescence

Chemiluminescence

Fluorescence

Photscnaitization

The Schrodinger equation when solved for any system gives.

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The mean force path

The Polarizability

The energy function

The wave function

HS- is a conjugate base of.

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S2-

H2S

H2SO3

H2SO4

Which of the following statement is not correct regarding the stern theory of charge on colloidal particles.

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The colloidal particle has a charge distribution at its surface.

In the immediate vicinity of the colloidal particles there is an excess of counter ions

The greater the concentration and charge of ions in the diffused electrical double layer. the larger is the thickness of the layer

At large distance from the colloidal particles, the concentration of co-ions and counter ions are almost equal

In a system , when the chemical potential of each component is the same for all phases. the equilibrium is said to be in

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Metastable equilibrium

Thermal equilibrium

Composition equilibrium

Mechanical equilibrium

The mole of photon is knonw as.

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Quantum

Einstein

Energy packet

None of the above

The increasing order of energies of various sub shells is

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1s < 2s<3s<2p<3p<4s<3d

1s <2s<2p<3s<3p<4s<3d

1s>2s>2p>3s>3p>4s>3d

1s>2s>2p>3p>3d>4s

Which of the following solution would exhibit abnormal colligative proportions.

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0.1 M NaCl

0.1 M urea

0.1 M sucrose

0.1 M glucose

Which of the following unit cells has least symmetry.

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Monocline

Cubic

Triclinic

Tetragona

In emulsions , the dispersed phase and the dispersion medium are.

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Both solids

Both liquids

Both gases

Phase is liquid and medium is solid.

The tyndall effect is not observed in

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Suspensions

Emulsions

Colloidal solutions

True solutions

Which of the following symmetry element leaves the molecule or an object unchanged.

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Proper rotation

Improper rotation

Inversion axis

Identity

Which of the following solution has pH= 11?

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1 X 10^-11 m NaOH

1 x 10^-11 m HCl

1 x 10^-3 M NaOH

1 X 10 ³ M NaOH

Which of the following statement is not correct regarding galvanic cells.

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Oxidation occurs at the anode

Ions carry current inside the cell

Electrons flow around the external circuit. form cathode to anode

When the e.m.f. of the cell is positive cell reactionis spontaneous

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