Question # 1

Which quantum number is sufficient to describe the electron is hydrogen

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ι

n

m

s

When electricity is passed through moten Al₂O₃+Na₃AIF₆and 13.5 gms of Al are deposited, the number of faraday must be

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0.5

1.0

1.5

2.0

Red lead is

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PbO

Pb₃O₄

PbO₂

Pb₄O₃

The halide which is not hydrolysed is

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SiCl₄

SiF₄

CCl₄

PbCl₄

Inert pair effect plays an important role in case of

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F

Al

Si

Tl

Benezene is obtained by fractional distillation of

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Heavy oil

Anthracene oil

Middle oil

Light oil

The rate of a reaction that does not involves gases, does not depend upon

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Pressure

Temperature

Concentration

Catalyst

The chemical composition of white lead is

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Na₂CO₃

Pb₃O₄

Pb(OH)₂.2PbCO₃

PbO

The alkali metal which is liquid at 15°C is

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K

Cs

Na

None

Which species represents the electrpohile in aromatic nitrotaion?

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NO^-₂

NO⁺₂

NO2

NO^-₃

The essential component of organic compound is

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O

C

P

N

Which of the following compounds has the lowest anion to cation size ratio?

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LiF

NaF

Csl

CsF

The molal elevation constant is the ratio of the elevation in boiling point to

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Mojarity

Molality

Mole fraction of solute

Mole fraction of solvent

Which of the following cannot be produced by acidic dehydration of alcohols?

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Ethers

Aldehyde

Alkyl Hydrogen sulphate

Alkene

In N.W.F.P the phosphate fertilizers are produced at

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D.I.Khan

Haripur

Nowshera

Dargai

Red P can be obtained from white P by

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Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂and crystallzing

Melting it and pouring the liquid into water

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NAT II Physical Science Chemistry MCQs With Answers

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