Question # 1

Which one of the following does not show isomerism?

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Propane

Hexane

Butane

Pentane

Water is made disinfectant during purification of water to the step:

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aeration

coagulation

chlorination

treatment

Methyl butyrate has an smell of:

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apple

pine apple

banana

winter green

Ecosystem is a smaller unity of

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Nydosphere

Biosphere

Lithosphere

Attmosphere

Beryllium differs from other elements of group Il-A due to

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high charge density

comparatively high nuclear charge

small radius

all above

Which of the following protein is used to make buttons

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Gelatin

Callogen

Albumin

Casein

The standard electrode potential of hydrogen is arbitrarily taken at 298k is

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1.00volt

0.10 volt

0.00 volt

10.0 volt

This is known fact that the molar volumes of different gases at S.T.P. are

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much larger than the molar volumes of liquids and solids

little bit less than the molar volumes of solids

about the same as the molar volumes of liquids

little bit greeter than the molar volumes of liquids

The volume of a gas that is occupied by its one mole at S.T.P. is known as:

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atomic volume

molar volume

normal volume

total volume

The shielding effect of inner electron is responsible for

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Having no effect on ionization energy

Decreasing ionization energy

Increasing ionization energy

Increasing electronegativity

Mathematically, Boyle's law is indicated as:

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VT = K

PT = K

PV = K

None of these

Which can be used for dehydration of alcohol

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P₄O₁₀

H₂SO₄

H₃PO₄

All of them

The word paper is derived from the name of which reedy plany

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Rose

Sun flower

Papyrus

Water hyacinth

When the rate of reaction is entirely independent of the conc. of reaction molecules then order of reaction is

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Zero

First

Second

Third

When 6d orbital is complete, the entering electron goes into:

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7f.

7s.

7p.

7d.

Vant Hoff's factor of Ca(NO₃)₂is

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1

2

3

4

The amount of heat evolved or absorbed in a chemical reaction, when the molar quantities of products and reactants being the same as represented in chemical equation. is called

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Heat of reaction

Free energy of reaction

Entropy of reaction

None of these

Which is not a bidentate ligand

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The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called

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Isomerization

polymerization

Hybridization

Resonance

Kinetic energy of the molecules is due to

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Transnational motion

Rotational motion

Vibrational motion

All of these

When aqueous solution of NaOH is electrolysed useing graphite electrodes, the product obtained at anode is

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O₂gas

H₂gas

Na metal

Na₂O

The rate of reaction between two specific time intervals is called

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Instantaneous rate

Average rate

Specific rate

Ordinary rate

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