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Chemistry

Chemistry
Which one of the following elements is used in the manufacture of safety matches?

Silicon
Sodium
Phosphorus
Graphite

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Chemistry
Which of the following is an iron ore ?

Bauxite
Magnetite
Lignite
Nitrite

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Chemistry
Aspirin is chemically known as

Hydroxysalicylate
Alkylsalicylic acid
Acetylsalicylic acid
Methyl salicylate

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Chemistry
The most common cause of pollution of air is

Carbon monoxide
Smoke
Sulphur dioxide
Carbon dioxide

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Chemistry
Of the following, which one pollutes the air of a big city ?

Copper
Cadmium
Lead
Chromium

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Chemistry
A matured mammalian cell without nucleus is

Oocyte
Lymphocyte
Spermatozoan
Erythrocyte

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MORE MCQ ON Chemistry

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