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Chemistry

Chemistry
Taj Mahal is greatly affected due to :

Sound pollution
Tourists
Acid rain
Deforestation

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Chemistry
Which one is a soluble salt in H2O

CuS
Zn(OH)2
PbCl2
CaCl2

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Chemistry
Which of the following is not a method of preparing oxygen?

Fractional distillation of liquid air
Electrolysis of water
Decomposition of manganese dioxide
Decomposition of potassium permanganate

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Chemistry
What are the major pollutants of cigarette smoke?

Carbon monoxide and benzene
Carbon monoxide and dioxin
Carbon monoxide and nicotine
Dioxin and benzene

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Chemistry
Limestone is a raw material used by which industry?

Fertilizers
Petrochemicals
Cement
Aluminium

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Chemistry
The wire of flash bulb is made of:

Barium
Magnesium
Copper
Silver

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MORE MCQ ON Chemistry

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