Question # 1

Boiling point of water is:

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0^oC

25^oC

80^oC

100^oC

The dynamic equilibrium in irreversible reaction.

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Never establishes

Establishes after completion of reaction

Establishes before completion of reaction

Establishes very soon

Sindh alkalies limited was established near Karachi in.

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1965

1966

1970

2000

Hookworm is a parasite that infects the:

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large intestine

small intestine

stomach

liver

Which is not a heavy metal.

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Cadmium

Lead

Zinc

Murcury

Formula of baking soda is.

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Na₂CO₃

NaHCO₃

Na₂SO₄

Na₂PO₄

Which one gas is liberated when alkalies react with ammonium salts?

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O₂

CO₂

H₂

NH3

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Cause of global warming is:

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CO₂gas

SO₂gas

NO₂gas

O₂gas

Which is used for cleaning agent for domestic and commercial purpose?

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NaCl

Na₂CO₃

NaHCO₃

Na₂SiO₃

The general formula of alkane is

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C_nH_2n+2

C_nH_2n-2

C_nH_2n

C_nH_2n+1

Which one of the properties of water is responsible for rising of water plants?.

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Specific heat capacity

Surface tension

Excellent solvent action

Capillary action.

In smelting process a small amount of coke is required because:

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it is highly endothermic process

it is highly exothermic process

it is very fast process

it is very slow process

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