Question # 1

The color of Fe(OH)₂ ppt is.

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White

Brown

Muddy green

Blue

Which of the following statement s is not true about fossil fuels?

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they all contain carbon

They are renewable

they produce pollutants when burnt

they cause acid rain

Substitution reaction is the characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

The process of roasting during metallurgy of copper is carried out in a special furnace called.

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Blast furnace

Fire furnace

Bessemer converter

Reverberatory furnace

Which is disaccharide?

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Glucose

Fructose

Sucrose

Starch

According to Bronsted and Lowry concept a base is a substance that can accept.

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Proton

Electron pair

Neutron

Electron

Coal is the mixture of

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Hydrogen

Methane

Carbon monoxide

All

Percentage of carbon in peat is.

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50%

60%

70%

80%

Sindh alkalies limited was established near Karachi in.

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1965

1966

1970

2000

Which diseases cause by the deficiency of vitamin E?

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Rickets

Anemia in babies

Scurvy

Night blindness

soap is the sodium salt of long chain.

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Amino acids

Fatty acids

Nucleotides

None of them

A conjugate acid is a specie formed by accepting a.

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Proton

Electron pair

Neutron

Electron

Blonde hair contains compounds of:

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molybdenum

iron

titanium

copper

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