Question # 1

Electromotive force of the cell is the

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Difference of two electrode potentials

May be sum or the difference of two electrode potentials

Sum of two electrode potential

Depends upon the nature of the cell

For a given process, the heat chagnes of constant pressure and at constant volume are related to each other as.

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qp= qv

qp<qv

qp>qv

None of these

Electrochemical series is the arrangement of the electrodes in

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Increasing order of reduction potentials

Decreasing order of reduction potentials

Increasing order of oxidation reduction potential

There is no fixed arrangement

Which one of the following is not property of a good solvent.

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It should be inexpensive

It should dissolve impurities easily

It should dissolve large amount of solute at boiling point and less amount of solute at low temperature.

It should not react chemically with solute

Repeated extraction using small portions of solvent are more.

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Accurate

efficient

Slow

Rapid

What are the SI units of Van der Waal constant 'a'

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atm dm3 mol-2

atm dm6 mol-2

Nm4 mol-2

Nm mol-1

Unit of rate constant is the same as that of the rate of reaction in

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2nd order reaction

3rd order reaction

Zero order reaction

1st order reaction

The number of bonds in nitrogen molecules is.

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One pi and one sigma

One pi and two sigma

Thre sigma only

Two pi and one sigma

Depression in the F.P is directly proportional to

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Molarity of solution

Molarity of solvent

Molality of solvent

Molality of solution

The relationship between K_pand K_cis given by

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Molarity of pure water is

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1

18

55.5

6

Existence of an element in more than one crystalline form is known as.

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Anisotropy

Allotropy

Isomorphism

Unit cell

Which molecules is 100% covalent

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H2

H2O

HF

NH3

The smallest collection of ions in an ionic compound is called.

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Formula unit

Chemical formula

Formula mass

Molecular formula

The number of molecules in one dm³of water is close to

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Solvent extraction method is a particularly useful technique for separation when the product to be separated is.

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Non volatile or thermally unstable

Volatile or thermally stable

Non volatile or thermally stable

Volatile or thermally unstable

Gooch crucible is made of.

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Glass

Paper

Teflon

Procelain

Which one of the following has no tendency of form coordinate covalent bond with H+

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NH3

H2O

CH4

CH3OH

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