Question # 1

Ammonium Nitrate fertilizer is not useful for

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Wheat

Cotton

Sugan cane

Paddyrice

Phenol after reduction with hydrogen changes to

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Picric acid

Benzene

Cyclohexane

Cyclohexanol

Which of the following specie has the maximum number of unpaired electrons.

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O2

O2+

O2-

O2^-2

Which one of the following noble gases is least polarizable

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He

Ne

Ar

Kr

Which is insoluble in water.

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BeSO4

MgSO4

CaSO4

BaSO4

Sodalime is

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NaOH

Mixture of Na and Ca(OH)2

KOH

Mixture of CaO and NaOH

Which of these polymers is a synthetic polymer

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Animal fat

Starch

Cellulose

Polyester

Which one of the following gases exist in monoatomic form.

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Ozone

Nitrogen

Krypton

Phosphine

Aluminium oxide is

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Acidic oxide

Baric oxide

Amphoteric oxide

None of these

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

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2 kg

5 kg

7 kg

10 kg

Kerosene oil is a mixture of hydrocarbon having carbon

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11 to 13

10 to 12

11 to 12

8 to 9

Iodine deficiency in diet is known to cause.

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Beri Beri

Goiter

Rickets

Night blindness

The pH range of the acid rain is

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7-6-5

6.6-6

6-5.6

less than 5

Which one of the following has lowest first ionization energy.

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Li

Na

Rb

Cs

Colour of which halogen is not correctly related.

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F2 --- colourless gas

Cl2---- greenish yellow gas

Br2----- Reddish brown liquid

I2-------- grayish Black solid

Which complex shows zero oxidation state of the transition metal.

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[Fe(CO)5]

K3[Fe(CN)6]

K2[Fe(CN)6]

[Cu(NH3)4]SO4

Synthetic rubber is made by polymerization of

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Vinylaecetate

Acetylene

Divinylacetylene

Chloroprene

Which element shows highest oxidation state among these

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Zn

Fe

Mn

Sc

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