Question # 1

The rate of E1 reaction depends upon

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The concentration of substrate

The concentration of substrate as well as nucleophile

The concentration Nucleophilic

Nature of Catalyst

Phenol is completely soluble in water above

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25°C

62.3℃

68.5°C

66.50°c

Which of the following is woody raw material used for making pulp and paper:

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Eucalyptus

Bagasse

Wheat straw

Cotton linter

Li resembles with Mg, because

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the ratio of their charge to size is nearly the same

both have nearly same size

both are metallic in nature

both are found together in nature

Plastics are pollution problem because many plastics:

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are made from petroleum

are very inflammable

burn to produce toxic fumes

decompose to produce toxic products

If Kc value is small then equilibrium position will shift

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Towards left

Remains unchanged

Towards right

lt is always constant value

Sea gets polluted bu accidental oil spills and

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Atmospheric pressure

Nitrogen gas

Cargo oil tankers

Aero plane

The density of a gas is 1.964 g dm-³ at 273K and 76 cm Hg The gas is

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CH₄

CO₂

C₂H₄

Xe

The molecules of CO₂is dry ice form the

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ionic crystals

covalent crystals

molecular crystals

any type of crystal

Enzymes are chemically

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carbohydrates

proteins

fatty acids

phospholipids

The type of isomerism shown by alkyl halides is

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geometric

functional

positional

metamerism

After chlorination, the pulp is washed at:

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20°C

30°C

40°C

60°C

The high molecular weight materials which yield on hydrolysis the amino acids is called:

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Carbohydrates

Lipids

Fatty acids

Proteins

The filtration process is used to separate solid from:

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Liquid

Gas

Solid

All of above

Metallic conduction is also called as :

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Ionic conduction.

Protonic conduction.

Electronic conduction

Super conduction

Oleum is

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Castor oil

Oil of vitriol

Fuming of H₂SO₄

None of them

The tendency of an atom to attract shared electron pair towards itself is called

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Covelent bond

Electronegativity

Ionization potential

Electronic affinity

Biodegradable pollutant is

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Plastic

Asbestos

Sewage

Mercury

Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO₄

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Butanol

Butanoic acid

Butanone

Butane

Which of the following fibres are made of polyamides?

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Dacron

Orlon

Nylon

Rayon

Which of the following has more unpaired d-electrons?

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Zn⁺

Fe²⁺

Ni³⁺

Cu⁺

Among the following the most reactive towards alcoholic KOH is

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CH₂= CHBr

CH₃COCH₂CH₂Br

CH₃CH₂Br

CH₃CH₂CH₂Br

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