Question # 1

Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone.

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Primary alcohol

Secondary alcohol

Tertiary alcohol

Dehydrin alcohol

Boric acid is used as eye wash due to its

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Weakly acidic property

Antiseptic nature

Antibiotic nature

Weakly basic properties

The oligosaccharides contain number of hexose unit.

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2 to 7

2 to 8

2 to 9

2 to 100

Which of the following is an ester.

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Soap

Starch

PVC

Dacron

In Pakistan, the total consumption of paper per person per year is.

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2 kg

5 kg

7 kg

10 kg

Out of the elements of group VIA the highest melting and boiling points is shown by the element.

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Te

Se

S

Po

Formalin is a 40% solution of

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CH₃CHO

CH₃OH

HCHO

CH₃OCH

Raney Nickel is

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Nickel compound

Naturally occurring nickel

Spongy form of a nickel

Alloy of nickel

A carboxylic acid contains

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A hydroxyl group

A carboxyl group

A hydroxyl and carboxyl group

A carboxyl and an aldehydic group

In which hybridization bond angle is maximum

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sp3

sp2

sp

sp3 and sp have same angles

In ethene molecule, the number of atoms which are present in the same plane are.

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2

6

3

4

Which one of the following will be required to form ethene from ethyl chloride.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Bromine

Which reaction is disproportionate reaction

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Aldol Condensation

Cannizzaros's reaction

Haloform reactions

Acid-catalyzed reactions

The brown gas formed when metal reduces HNO3 is

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N2O5

N2O3

NO2

NO

Which one of the following set of raw material is most suitable for manufacture of urea.

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CH4, N2 and CO2

H2, N2 and CO

H2,CO2 and H2O

H2O, N2 and H2

Boron usually exist in nature as

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Borides

Oxborates

Free element

It is a artificial element

Bone ash contain calcium phosphate

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40%

50%

70%

80%

The conversion of potassium magnate to potassium permanganate by passing Cl2 Through aqueous solution of K2MnO4 is called.

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Contact process

Open hearth process

Stadeler's process

Thermite process

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