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Chemistry

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

Lead
Fluorine
Aluminium
Potassium

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Chemistry
The metal chiefly used for galvanising iron is :

Zinc
Tin
Mercury
Cadmium

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Chemistry
The metal extracted from Bauxite is :

Manganese
Aluminum
Copper
Silver

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Chemistry
Non-stick kitchenwares are coated with

PVC
Graphite
Teflon
Silicon

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Chemistry
Atomic number of an atom gives the number of which of the following ?

Protons
Neutrons
Electrons
Neutrons and protons

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Chemistry
Sulphur dioxide present in the industrial chimney exhaust causes

Reduction in plant's productivity owing to acid rain
Respiratory and lung disease
Corrosion building materials
All of these

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