Question # 1

Ti+3 shows minimum absorption (maximum transmittance) at-------and-------wavelength

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Yellow, Green

Red. Yellow

Blue. Green

Red. Blue

Which one of the following has the lowest pH values

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0.1 M HCI

0.01 M HCl

0.1 M KOH

0.01 M KOH

Which products are formed when triglyceride is hydrolysed

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Glycerol

Fatty acid

Glycerin

Both A and B

Dipole-dipole interaction are present in the

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atoms of the He gas

molecules of CCl4

molecules of solid iodine

molecules of :NH3

Nylon 6 6 is prepared by the reaction of hexamethylene with

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formic acid

acetic acid

adipic acid

none of these

According to the general gas equation, density of an ideal gas depends upon

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Pressure

Temperature

Molar mass of the gas

All of the above

Which process of pulp making is mostly used in Pakistan?

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Kraft process

Sulphite process

Neutral sulphite semi chemical process (NSSC)

All of these

Acetylide can give back ethyne upon treatment with

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water

strong base

dil. Acid

weak base

Heat balance of earth is maintained by sphere:

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Hydrosphere

atmosphers

lithosphere

biosphere

The vapour density of a gas is 11.2.The volume occupied by 11.2 g of this gas at N.T.P is

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22.4 litres

11.2 litres

1 litre

2.24 litres

Which woody raw material is used of the manufacture of paper pulp?

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cotton

bagasse

poplar

rice straw

Rutherford's experiment led to the discovery of

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Nucleus

Electron

Proton

alpha particle

Choose the correct answer of transition elements?

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Transition elements have low melting points

Transition elements do not have catalytic activity

Transition elements exhibit variable oxidation states

Transition elements exhibit inert pair effect

The state of hybridization of carbon atom in methane is:

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sp³

sp²

sp

dsp²

The formula of curprite is

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Cu₂S

Cus

Cu₂O

CuCO₃

Sodium thisoulophate is used in photography because of its

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Oxidizing behaviour

Reducing behaviour

Complexing behaviour

Photochemical behaviour

Amino acids are bifunctional organic compounds what are the two function groups

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Carboxylic acid and alcohol

Alcohol and aldehyde

Carboxylic acids and ketone

Amino group and carboxylic acid

Monosaccharides are

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Aldoses

Ketoses

Either a and b

None of these

Which of the following has linear shape?

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SP

SP²

SP³

None of the above

Scientific study of fermentation was first made by

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Buchner

Liebig

Biot

Pasteur

Azimuthal quantum number of last electron of ₁₁Na is

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1

2

3

0

Which of the following synthetic fertilizer do not make soil acidic

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Urea

Thin urea

Ammonium phosphate

Potassium nitrate

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