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Chemistry

Chemistry
The example of oligosaccharide is

Cellulose
Ribose
Sucrose
Glucose

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Chemistry
Sea water is saltier than rain water because

Sea animals are salt producing
The air around the sea is saltish
Sea beds have salt producing mines
Rivers wash away salts from earth and pour them into the sea

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Chemistry
The polymer used in making plastic crockery is

Decron
Melamine
Nylon
Bakelite

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Chemistry
The three elements most needed in common fertilisers are :

Nitrogen, Potassium and Phosphorous
Phosphorous, Sodium and Nitrogen
Calcium, Phosphorous and Potassium
Sulphur, Phosphorous and Sodium

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Cinnamic acid
Benzoic acid
Phthalic acid
Oxalic acid

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Chemistry
The luster of a metal is due to

its high density
presence of free electrons
its chemical inertness
its high polishing

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MORE MCQ ON Chemistry

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