Question # 1

The elements that do not conduct heat and electricity are called.

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Metallurgy

Non metal

Metalloid

Alloy

Water has a maximum density at 4 ^oC

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12 cm^-3

2 g cm^-3

1 g cm^-3

4 gcm^-3

In hydrogenation of vegetable oil catalyst employed is.

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Ni

Pt

ZnO

Cr₂O₃

How many % age of urea is used as fertilizers?

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80%

90%

95%

98%

Word "acid" derived from:

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Urdu

English

Latin

Greek

Thermosphere lies beyond.

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Stratosphere

Troposphere

Mesosphere

Biosphere

Which one is the formula of chloromethane.

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CH₂Cl₂

CCl₄

CHCl₃

CH₃Cl

Mercury poisoning cause:

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neurological damage

high blood pressure

kidney damage

gastro

The energy provided by carbohydrates in per gram.

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17 KJ

21 KJ

35 KJ

10 KJ

Amino acid are linked to each other through.

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Hydrogen link

Ionic link

Gelatin link

Peptide link

The percentage by volume of nitrogen in dry gas is.

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78.09%

20.94%

0.93%

0.03%

Mg²⁺ and Ca²⁺ ions react with soap to form calcium and magnesium salts of fatty acids called.

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Gelatin

Scum

Paste

None of them

How many percentage blister copper is pure?

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95%

75%

98%

100%

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