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Chemistry

Chemistry
The anode of a dry cell is made up of

Cadmium
Lead
Zinc
Iron

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Chemistry
Sulphur dioxide present in the industrial chimney exhaust causes

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

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Chemistry
Diamonds are glittering and attractive because light incident on them undergoes

Multiple surface reflections
Highest refraction
Hundred percent transmission
Multiple internal reflections

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Chemistry
Galvanization is the :

Deposition of tin on iron
Deposition of copper on iron
Deposition of aluminium on iron
Deposition of zinc on iron

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Chemistry
Which one of the following forms of phosphorus is most reactive?

Red phosphorus
Black phosphorus
White phosphorus
Violet phosphorus

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Chemistry
When quick lime is added to water

Heat is liberated
No heat change takes place
Heat is absorbed
Temperature decreases

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