Question # 1

The correct order of increasing attractive strength for weak intermolecular forces is....

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dipole-dipole interaction hydrogen bonding, van der Waals forces

van der waals forces dipole- dipole interaction, hydrogen bonding

hydrogen bonding, dipole-interaction, van der Waals forces

hydrogen bonding, van der Waals forces, dipole-dipole interaction

The working condition/s for SHE

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1atm pressure

1M H-solution

298K temperature

All of these

Corrundam is ore of which element?

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Al

Th

In

Mg

For what value of Kc almost forward reaction is complete

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Kc.=10(-30)

Kc.=1

Kc = 10(30)

Kc,=0

Equal volumes of gases at the same temperature and pressure contain equal number of particles.This statement is direct consequence of

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Perfect gas law

Partial law of volumes

Charle's law

Ideal gas equation

6Na+ Fe2O3 -------- 3 Na2O+2Fe For above reaction, if you are provided with 230g Na and 320g Fe2O3, then limiting reactant is

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, Na

Na2O

Fe2O3

none of these

0.1M HCI having pH =1.0 it is about 100 time stronger than acetic acid what will be the pH of acetic acid:

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0.1

1.3

2

3

The %age composition of the auxiliary agent in a detergent is:

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10%

30%

50%

70%

An amion acid exists in the form of Zwitter-ioin which has:

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one + ve charge

one - ve charge

one +ve and -ve charge

two +ve charge

The examples of a hexagonal system is

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sugar

graphite(a=b not equal to c) {Alpha =beta. not equal to gamma}

sulphur

diamond

An electron with drawing group attached to e-position in phenol

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makes it basic

Stabilises the phenoxide ion

decreases its basicity

allows it to precipitate in aqueous solution

Which is used to identify Cu²⁺ions

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Nitric acid

Sulfuric acid

NaOH

HCI

What will be the weight of deposited silver on passing 965 coulombs of electricity in solution of AgNO₃?

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1.08 g

2.16 g

0.54 g

0.27 g

Which one of the following metal ions is colourless?

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V²⁺

Cr³⁺

Zn²⁺

Ti³⁺

The atomic mass is measured in atomic mass unit (a.m.u.) which is equal to

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1.661 x 10^{-27- Kg}

1.661 x 10^-24Kg

1.661 x 10^{-27- g}

1.661 x 10^-24mg

In the ground state, an element has 13 electrons in its M shell. The element is

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Copper

Chromium

Nickel

Iron

Hydrochloric acid available in the laboratory is 36% w/w. The density of HCl solution is 1.19 g cm^-3. The molarity of HCl solution is

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10.23 moles dm^-3

11.55 moles dm^-3

11.73 moles dm^-3

12.67 moles dm^-3

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The most reactive compound for electrophilic nitration will be

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Benzyl chloride

Benzoic acid

Nitrobenzene

Chlorobenzene

The alkaline earth elements have in their s-orbital

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One electron

Two electron

No electron

Three electron

Which of the following waste material is not recycled for use again

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Paper

Plastic

Hides of animals

Glass

In the reaction K₂Cr₂O₇+ HCl + CrCl₃+ Cl₂+ H₂O the element which is reduced is

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K

Cl

Cr

H

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