Question # 1

Amino acids ionize in water to form

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Zwitterion

Internal saH

Dipolar ion

All of these

ln ethyl alcohol, the bond that undergoes heterolytic cleavage most readily is

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C-C

C-O

C-H

O-H

Bonding in MgO is an example of

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lonic bond

Polar bond

Covalent bond

Coordination covalent bond

The solid particles posses only ______ kinetic energy

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Translational

Rotational

Viberational

Circular

Thermoplastic polymer can be softened and hardened when cool repeatredly, Which one is not a thermoplastic among he following?

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epoxy resin

PVC

Plastic toys

none of all

Which of the following is a reason why real gases do not behave as ideal gases do?

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real gases have intermolecular forces between the molecules

real gases do not have intermolecular forces between the molecules

real gases exist as molecules

molecules of real gases attract each other more strongly than molecules of ideal gases

According to Boyles law, at constant temperature the product of pressure and volume of a given mass of gas is

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whole number

a constant

fraction

a multiple

Water has high boiling point which is due to

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weak dissociation

hydrogen bonding

high specific heat

high dielectric constant

Group of element belongs to IIB group

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Zn. Cd. Hg

Cu. Ag. Au

Sc. Y. La

Ni. Pd. Pt

Amylose and Amylopectin are two fraction of starch which of them gives violet colour with I₂

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Amloase only

Amylopectin only

Both amlose & amylpectin

None of thses

Pressure remaining constant at which temperature the volume of a gas will become twince of what it is at 0∘C.

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546∘C

200∘C

546K

273K

When phenol is reduced in the presence of Zn dust, we get

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Cyclohexene

Cyclohexane

Benzene

Benzyne

A salt producing hydrocarbon among these compounds is

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Ehyne

Ethene

Methane

Ethane

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With H₂/Ni CH₃(CH₂)₅CH₂OH

With H₂/Ni CH₃(CH₂)₅CH₃

With NaBH₄ CH₃(CH₂)₅CH₂OH

With NaBH₄ CH₃(CH₂)₅CHO

Which of the element is not alkali metal

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Lithium

Rubidium

Francium

Magnesium

Which one of these is weakest?

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Ionest bond

Covalent bond

Metallic bond

Van der Waal's forces

Corrundam is ore of:

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Li

Be

B

Al

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with

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Hund's rule

Markownikov's rule

Pauli's Exclusion principle

Auf ban principle

Solvent extraction method is a particularly useful technique of separation when the product to be separated is:

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non-volatile or thermally unstable.

volatile or thermally stable.

non-volatile or thermally stable.

volatile or thermally unstable.

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Moles per dm³

Partial pressures

Number of moles

Mole fractions

Angle 120° is observed in molecules :

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CH₄

CH_3-CH₃

CH -CH

CH_{2 =}CH₂

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The value of K_pfalls with a rise in temperature

The value of K_pfalls with increasing pressure

Adding V₂O₅catalyst increase the equilibrium yield of sulphur trioxide equilibrium yield of sulphur trioxide

The value of K_pis equal to K_c

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