Question # 1

That cell in which electrical energy is converted into chemical energy is called

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Galvanic cell

Electrolytic cell

Fuel cell

Daniel cell

Most of the reaction which give stable products are

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Exothermic

Endothermic

Isothermal

None of these

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

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Clausius

Mexwell

Boltzmann

Vander waal

Which of the following represents electronic configuration of the most electropositive elements

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He [ 2s^-1]

Xe [6s¹]

He [2s²]

Xe [6s²]

Paalladium has isotopes.

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6

₇

8

9

Which has greater reduction potential

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Na

H2

Zn

F2

Many elements have fractional atomic masses. This is because

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The mass of the atom is itself fractional

Atomic masses are average masses of isobars

Atomic masses are average masses of isotopes

Atomic masses are average masses of isotopes proportional to their relative abundance

Which of the following has highest percentage ionic character.

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HCl

HF

HBr

HI

Gooch crucible is made of.

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Glass

Paper

Teflon

Procelain

The Avogadro constant is the number of.

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Atoms in 1 g of helium ga

Molecules in 35.5 g of chlorine gas

Atoms in 6 h graphite

Atoms in 24 g of magnesium

Colligative properites are the properties of

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Dilute solutions which behave as nearly ideal solution

Concentrated solution which behave as nearly non-ideal solution

Both a and b

Neither a nor b

The unit of the rate constant is same as that of the rate of reaction in

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First order reaction

Second order reaction

Zero order reaction

Third order reaction

In a electrolytic cell the electrons flow from

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Cathode to anode

Anode to cathode

From cathode to anode or opposite, depending upon the nature of electrolyte

All of the above

When one mole of each of the following is completely burned in oxygen, which gives the largest mass of carbon dioxide.

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Diamond

C2H6

Methane

CO2

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

The oxidation number of C in C12H22O11 is

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Zero

- 6

+ 6

12

In given equation underlined element is. P+HNO3------------- H2PO4+NO+H2O

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Oxidized

Reduced

Neither oxidized nor reduced

Botha a and b

The azimuthal quantum number / = 2, then M(Magnetic quantum number) can have values as

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+1, -1

+1, 0, -1

+2, +1, 0,1, -1, 2

+3, +2, +1, 0, 1, -2, -3

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