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Chemistry

Chemistry
The coordination number of body centered atom in cubic structure is

6
10
4
8

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Chemistry
Acid rain' is caused due to air - pollution by

Carbon dioxide
Carbon monoxide
Methane
Nitrous oxide and sulphur dioxide

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Chemistry
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :

Generator
Battery
Power transmittor
Uninterrupted power supply (UPS)

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Chemistry
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Hydrogen
Helium
Methane
Nitrogen

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Chemistry
The constituents of automobile exhaust that can cause cancer is/are :

Carbon monoxide
Lead
Oxides of nitrogen
Polycyclic hydrocarbons

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Chemistry
Interveinal necrotic spots on leaves appear due to

NO2injury
O3injury
HF injury
SO2injury

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MORE MCQ ON Chemistry

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