Question # 1

The state of hybridization in ethene molecule is

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dsp²

sp³

sp²

sp

In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms.

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One

Two

Three

Four

When concentrated H2SO4 and solid sodium chloride react together at room temperature the product are.

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Two salts only

A salt and a base

A salt and an acid

A salt and water

The element of 2nd period, which has highest ionization energy from the following is

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Be

C

N

O

Which compound is called universal solvent

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CH₃OH

C₂H₅OH

CH₃O CH₃

H₂O

Zymase can be used to convert glucose to

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Carbon and steam

CO2 and hydrogen

CO2 and Ethanol

Ethanol and water

One of following is argillaceous material

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Marble

Clay

Lime

Marine Shell

Chlorine heptoxide (CI₂O₇) reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

In Pakistan pulp is usually bleached with Cl2. The residual chlorine is removed from pulp by an antichlor which is

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dil HCl

dil NaOH

Water

NaCl

Formula of choloroform is

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CH₃Cl

CCl₄

CH₂Cl₂

CHCI₃

Which element does not have allotropic form

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Nitrogen

Phosphorous

Arsenic

Antimony

Which of the following enzymes brings about the hydrolysis of fats

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Urease

Maltase

Zymase

Lipase

Which reagent will react with both aldehyde and ketones

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Grignard reagent

Tollen's reagent

Fehling's reagent

Benedict's reagent

Which substance is formed by the catalytic oxidation of methane at 100 ^oC, 200 atmospheric pressure and copper catalyst

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Methanol

Methanal

Methanoic acid

All of these

Thickness of the atmosphere is

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100 km

500 km

1000 km

1500 km

Which one of the following compound is not of a polymer.

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Starch

Glucose

Protein

Nylon -6, 6

Which one of the following is inorganic fertilizer.

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Manure

Urea

Ammonium nitrate

All of these

Chlorine heptoxide reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

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