Question # 1

Monosacharides belong to the group:

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fats

lipids

carbhohydrates

proteins

Variable Oxidation state of is related to transition elements

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empty d-subshells

Completely filled

Partially filled d-subshell

d-d transition

Optimum PH rang for amylases is

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6 - 6.4

6.4 - 6.6

6.4 - 6.9

6.6 - 6.9

Which property of liquid is measured by polarimeter

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Conductance

Optical activity

Refractiye Indéx

Change in volume

Detergents are surfactants and they reduce the

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B.P. of water

Surface tension of water

Wetting ability of water

None of these

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

Carboxylic acids can be prepared from:

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Oxidation of alkane

Oxidation of alcohols

Oxidation of aldehydes

All of these

The actual volume of gas molecules is considered negligible at following pressures

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2atm

4atm

6 atm

8 atm

The addition of HCI to ethene gives?

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Chloroethane

1,2-dichloroethane

1.1-dichloroethane

2-chloroethane

one gram of carbohydrate yields energy:

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10kcal

100kcal

4kcal

9kcal

Hydrocarbons, SO₂, CO, NH₃nitrogen oxides and compounds of fluorine are called

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Primary pollutant

Secondary pollutant

Tertiary pollutant

None of these

Which is not a method for solid waste management

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Landfill

Incinerating

Recycling

None of these

The sample being analyzed is called :

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Electrolyte.

Substance.

Analyte.

All of above.

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Alkyl

Alkyl nitrile

Cyanogens

Amine

Which compound contains - OH in their molecule

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Alcohol

Phenol

Alcohol and phenol

Ether

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Small change in concentration of product

Small time internal

Co-efficient of the reactant

Co-efficient of the product

When during electrolysis of a solution of AgNO₃, 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be

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1.08 g

10.8 g

21.6 g

108 g

Activation energy is the difference of energy between the energy of the reactant and

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The product

The activated complex

Both a and b

None of these

Ethylene reacts will 1% cold alkaline KMnO₄to give

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Oxalic acid

Acetone

Ethylene glycol

Formaldehyde

Alkynes are colourless & odouless except

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Acetylene

Propyne

Butyne

Pentyne

Major food factors are:

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Fats and oils

Carbohydrates

Protiens

All of these

The catalyst,. which is used as specialist for cracking, are

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Aluminates

Alumlnosilicates

Aluminium slats

All can be used

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