Question # 1

The volume of a gas that is occupied by its one mole at STP is called

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total volume

normal volume

molar volume

atomic volume

Which of the following is NOT thermoplastic

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PVC pipes

Plastic toys

Varnish

Both A and B

The most important pesticides are:

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Herbicides

Insecticides

Fungicides

All

lonic solids don't conduct the electrical current because

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ion do not have translatory motion

free electrons are less

the coordination number of the ion is very high

strong covalent bonds are present in their structure

Second order of protein structure refers to

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Number and sequence of amino acids

Three dimensional structure of protein

Proteins formed of more than one monomer

Bending of protein molecule

Van der Waals equation explains the behaviour of

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Real gases

Mixture of gases

Ideal gas

Diatomic gases

In nucleophilie substitution bimolecular reaction the order of reaction with respect to substrate

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2 order

3 order

1st order

Zero order

Example of non-protein amino acid

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Alanine

Citrulline

Phenylalanine

Leucine

Which one of the pollutants of automobile exhausts affects the nervous system or produces mental diseases?

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NO₂

SO₂

Hg

Pb

1-chloropropane and 2.chlorpropane are isomers of each other, the type of isomerism in these two is called

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Cis-trans isomerisn

Position isomerism

Chain isomerism

Functional group isomerism

Which is not a component of environment?

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Biosphere

Lithosphere

Hydrosphere

None of these

Which one of the following reacts immediately with conc. HCI in the presence of ZnCI₂

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Primary alcohol

Secondary alcohol

Tertiary alcohol

Ether

Elevation of boiling point is measured by

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Beckmann's apparatus

Lands Berger's method

Antifreeze apparatus

None of these above

75% plant nutrients are present in the fertilizer:

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Urea

NH₄NO₃

NH₃

(NH₄)₂HPO₄

Mass spectrometer measures the

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Exact mass of an element

Average mass of an element

The number of elements present in a molecule

m/e value of a positive ion

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

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Functional isomers

Position isomers

Chain isomers

Metamers

The molarity of the solution containing x grams (NH₄)₂SO₄in 500 cm³of the solution is 0.6 what is x

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39.6

45.1

40.5

42.7

NaHCO₃is prepared by

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Down's process

Solvay's process

Nelson's process

None of these

What is the most common catalyst used in hydrogenation of oils

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Cobalt

Nickel

Tungsten

Copper

The filtration process is used to to separate solid from :

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Liquid.

Gas.

Solid.

All of above.

Which one of the following is used as antifreeze in the radiator

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Methanol

Ethanol

Ethylene glycol

Glycerin

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Hear of reaction

Heat of formation

Heat of neutralization

Heat of combustion

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