Question # 1

The maximum number of electrons in s,p,d and f sub shells are.

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2 in each

2, 6, 10, 18

2,6 ,10,14

5 in each

Which type of the solids are generally good conductors of electricty.

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Covalent

Ionic

Metallic

Molecular

Which of the following sets of quantum number is possible.

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n = 4, l = 3, m = -3 ,s = 0

n = 4, l = 0, m = 0, s =+1/2

n = 4, l = 4, m = -4, s = -1/2

None of these

The temperature of which the compound melts into a liquid to the same composition as the solid is called the

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Congruent melting point

Incongruent melting point

Peritectic temperatures

Metastable point

The blue colour of CuSO4 disappears on adding Zn granules to it . it is because of .

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Oxidation of Cu atom

Oxidation of Zn²⁺

Oxidation Cu²⁺

Oxidation of Zn²⁺

Smoke is a dispersion of

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Gas in gas

Gas in solid

Solid in gas

Liquid in gas

30 mL of an acid solution is neutralized by 15 mL of 0.2 N base. The strength of acid solution is.

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0.1 N

0.15 N

0.3 N

0.4 N

Which of the following will be most effective int he coagulntion of

Fe (OH)3 sol.

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NaCl

MgSO4

AlCl3

Mg3 (PO4)2

The value of an Einstein

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Is independent of wavelength

Decrease with increase in wavelength

Increase with increase in wavelength

Depends on the temperature of the absorbing system

Which of the following properties are not related to an atom.

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An atom consists of two basic parts , a nucleus and one or more electons.

The nucleus is the central core of an atom

An electron is a heavy and negatively charged particle.

The nucleus itself consiste of two particles.

The change in the concentration of the reactant of product per units time is called.

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Order of the reaction

Melecularity of the reaction

Rate of reaction

None of the above

Which of the following device is used to measure the surface tension.

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Polarimeter

Viscometer

Refractometer

Stalagnameter

The rays emitted by the cathode in a gas discharge tube under low pressure and high voltage of electricity are called cathode rays. Which of the following properties are not related to cathode rays.

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These travel in a straight lines.

These are deflected by magnetic and electric field.

Minerals Fluoreace with a characteristic color when placed in a beam of cathode rays.

These are dependent of the material used for the electrode.

Which of the following is not a true characteristics of a catalytic reaction.

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The amount and chemical composition of the catalyst remains unchanged after the reaction

The catalyst does not intiate a chemical reaction

The reaction in which product also act as catalysis are called autocratically reactions.

The catalyst shifts the equilibrium position of a reaction in a favorable direction

The rate at which a substance reacts depends on its.

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Molecular mass

Active mass

Equivalent mass

Molar mass

Which of the following statement is not related to the characteristics of gaseous state.

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The inter molecular forces of attraction are not strong in gaseous state

The gases do not have definite shape and volume

The gases are characterized by low density.

The gases have low comprehensibility

Which of the following properties of a system does not change in a state of equilibrium.

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Density

Pressure

Colour

All above properties

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

Total pressure exerted by a mistress of two or more than two gases in a definite volume as any given temperature is equal to the sum of partial pressures which each gas would exert, if it occupied the same volume alone, at the same temperature This is a statement.

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Boyle's law

Charle's law

Graham's law

Dalton's law

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

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Molality

Formality

Normality

Molarity

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