Question # 1

Which of the following statement is not correct for glycogen

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It is main storage of carbohydrates

It structure does not resemble Amylopectin

It has 1 → 4 and 1 → 6 glycosidic linkage

On hydrolysis it yields glucose units

Which fiber contains 85% acrylonitrile by weight:

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Acrylic fiber

Azlon fiber

Saran fiber

Rayon fiber

Charles's law is only obeyed at which temperature scale

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Celsius

Kelvin

Fahrenheit

both A&B

What is the reason of ionic solids for not conducting electricity?

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free electrons are less

ions don't have translatory mention.

ions don't have translatory mention

the coordination number of the ion is very high.

Image a man is sitting in a room. The room is closed from all sides, no entry no exit of any gas. If the room expands suddenly then:

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he will be frightened

he will feel cool

his blood pressure will decrease

he will feel warmth

If pressure is increased from a 2 atm to 4 atm on a gas then its volume will decrease from:

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3L to 1L

4L to 2L

6L to 4L

8L to 2L

Enzymes are

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simple proteins

derived proteins

compound proteins

conjugated proteins

Which of the following folymer is used as binder

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PVC

PVA

Acrylic resins

Polyester

Which of the statement is applicable for both ideal and real gases molecules?

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Have no forces of attraction

Collisions between the molecules is elastic

Molecules are in random movement

The actual volume of gas is negligible as compared to the volume of gas

The number paper industries in Pakistan are:

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30

25

35

20

Lactic acid is buffered by

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L. Carnosine

Glutathione

Casenogin

Dopa

During electrolysis of KNO₃, H₂is evolved

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Anode

Cathode

Both a and b

None

A special application of the Hess's law to binary ionic compounds of M⁺X^-type in calculation of their lattice energies is

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Enthalpy of reaction

Born-haber cycle

First law of thermodynamics

Enthalpy of combustion

Sodium thisoulophate is used in photography because of its

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Oxidizing behaviour

Reducing behaviour

Complexing behaviour

Photochemical behaviour

2.5 faradays of electricity is passed through solution of CuSO_{4. The number of gram equivalents of copper deposited on the cathode would be}

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1

2

2.5

1.25

With increases of 10°C temperature the rate of reactiondoubles. This increase in rate of reactionis due to :

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Decrease in activation energy or reaction.

Decrease in number of collisions between reactant molecules.

Increase in activation energy of reactants.

Increase in number of effective collisions

When primary amine reacts with chloroform in ethanolic KOH, then the product is

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An isocyanide

An aldehyde

A cyanide

An alcohol

Plaster of pares is obtained by heating

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Gypsum

Epsom

Lime stone

Dolomite

The e.m value for positive rays maximum for:

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Oxygen.

Nitrogen.

Helium.

Hydrogen.

The valence orbital configuration of an element with atomic number 23 is

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3d⁵

3d³, 4s²

3d³, 4s¹, 4p¹

3d²,4s²,4p¹

Which one of these is weakest?

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Ionest bond

Covalent bond

Metallic bond

Van der Waal's forces

The most reactive compound for electrophilic nitration will be

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Benzyl chloride

Benzoic acid

Nitrobenzene

Chlorobenzene

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