Question # 1

Succinic thiokinase is an enzyme of the type

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mutase

peroxidase

ligase

lyase

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T₁= T₂= T₃

T₁< T₂< T₃

T₁> T₂> T₃

T₁> T₂= T₃

The transition temperature of KNO3, is

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13.2°C

95.5°C

128°C

32.02°C

Which is not the condition for the formation of smog

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there must be sufficient NO gas

there must be sunlight to help photo chemical reactions to take place

air must be blowing swifty

there must be SO₂in the air

Macro-nutrients are required in quantities ranging from

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5 kg - 200 kg

2 kg - 100 kg

1 kg - 50 kg

10 kg - 100 kg

Denaturation of proteins is often characterised by

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Loss of biological activity

Aiways being irreversible

Being ereater the lower the temperature

Changes in primary structure

Reaction of alcohol with hydrogen chloride, in the presence of Zinc chloride yields

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Ketone

Carboxylic

Alkyl halide

Ester

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 potential of SHE is taken as zero which is avalue

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Reference

Arbitrary

Exact

Experimental

Glycogen is stored in

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Animals

Plants

Soil

None of these

The main pollutant of leather tanneries in the waste water is due to:

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Lead

Copper

Chromium (VI)

Chromium (III)

With increases in temperature of 10 K of the reacting gases the rate of reaction is doubled because

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Increase in number of collisions

Number of molecules having energy more than Ea is doubled

Increase in order of reaction

Increase in surface area

For a given process the heat change at constant pressure q_pis related to the heat change at constant volume (q_v) according to

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q_p= q_v

q_p< q_v

q_p> q_v

q_p= qv/2

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First order

Pseudo first order

Second order

Zero order

The empirical formula of a liquid compound is known to be C₂H₄O. What other information is needed to work out its molecular formula?

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The percentage composition of the compound

The relative molecular mass of the compound

The density of the compound

The volume occupied by one mole of the compound

Unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with

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Any aromatic amine

Any primary amine

Any amine

Any aliphatic amine

Ethylene reacts will 1% cold alkaline KMnO₄to give

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Oxalic acid

Acetone

Ethylene glycol

Formaldehyde

In which one of the following compound rings are not fused together at ortho positions

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Phenanthrene

Naphthalene

Diphenyemethane

Anthracene

N₂+3H₂⇌ 2NH_{3 + Heat for above equation, themaximum product will be obtained at :}

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Low temperature at high pressure.

High temperature and low pressure.

High temperature and high pressure.

Low temperature at low pressure.

Which gas is used for welding purposes

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Butane

Nitrogen

Methane

Acetylene

α-Amino acids are found in protein. Which of the following is anα-amino acid

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Which of the following is not charged particle

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Proton

Electron

Neutron

Hydrogen nucleus

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