Question # 1

The eleventh concentration of metal cause clogs of gills in fish:

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Al

He

Pb

Ca

Which of these polymers is an addition polymer?

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nylon 6,6

Polystyrene

terylene

epoxy resin

Acidification of soil can leach metal:

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Al

Hg

Pb

Ca

Chemicals used to kill herbs are:

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Herbicides

Insecticides

Pesticides

Fungicides

Potassium fertilizers are especially useful for:

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Tobacco

Potato

Coffee

All of these

Daily protein intake for normal adults should be

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0.2 g/kg

0.5 g/kg

0.8 g/kg

1.1 g/kg

Diamond is a bad conductor because

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it has light structure

it has a high density

there are no free electron present in the crystal of diamond to conduct electricity

it transparent to light

General gas equation is combination of

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Boyle s law

Avogadro s law

Charles s law

All of these

1 gram molecule refers to amount in grams

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Equivalent to 1 mole of an atom

Equivalent to 1 mole of a molecule

Equivalent to 1 mole of an ionic species

Of an ionic compound

Ricket is caused due to the deficiency of vitamin

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A

D

B

E

On electrophoresis for plasma proteins using buffer of pH 8.6

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The proteins are neutral

The proteins carry negative charge

The proteins carry positive charge

The proteins are easily precipitated

Ecology is a science of environment and deals specially with

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Stratosphere

Biosphere

Lithosphere

Hydrosphere

Which of the following will have the highest boiling point at 1 atm pressure?

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0.1 M NaCl

0.1 M Sucrose

0.1 M BaCl₂

0.1 M Glucose

Picric acid is

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2, 4, 6-Trinitrotoluene

2, 4, 6-Tribomoethanol

2, 4,6-Trinitrophenol

Para-Nitrophenol

Which of the following is the hardest metal among following

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Li

Na

Rb

K

Which of the following is a typical transition metal?

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Sc

Y

Ra

Co

The arrangement of subshells in the ascending order of their energy on complete filing of 4f subshell the entering electrons goes to

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5s

5p

5d

5f

Hydrolysis of potassium acetate produces

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Acidic solution

Neutral solution

Basic solution

None of these

The range of visible spectrum is

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300 - 600 nm

600 - 900 nm

400 - 750 nm

100 - 300 nm

Permonosulphuric acid is known as

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Marshall's acid

Carlo's acid

Sulphuric acid

None of these

Which isomers of C₅H₁₁OH gives, on dehydration, the greatest number of different alkenes

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When sodium metal reacts with alcohols

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Hydrogen gas evolves

Sodium hydroxide is obtained

Alcohol is reduced

Alcohol is polymerised

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