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Chemistry

Chemistry
Iron is extracted from

Haematite
Dolomite
Cinnabar
Bauxite

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Chemistry
PH value between 6.5-7.5 makes the soil

Acidic
None of these
Neutral
Basic

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Chemistry
German silver used for making utensils is an alloy of

Copper, zinc, nickel
Copper, silver, nickel
Copper, zinc, aluminium
Copper, nickel, aluminium

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Chemistry
Interveinal necrotic spots on leaves appear due to

HF injury
NO2injury
SO2injury
O3injury

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Glass
Paint
Gun powder
Cement

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Chemistry
Which of the following is biodegradable ?

Paper
Plastic
Aluminium
D.T.

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MORE MCQ ON Chemistry

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