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Chemistry

Chemistry
Pollutant from motor car exhaust that causes mental disease is

NO2
Hg
Lead
SO2

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Chemistry
An element of atomic no. 29 belongs to

P-block
F-block
S-block
D-block

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Chemistry
Black lung disease occurs in people working in

Paint manufacturing industry
Electroplating industry
Organic solvents industry
Coal mines

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Chemistry
Cyanide poisoning causes death in seconds because

It denatures enzymes of the heart/muscle
It causes Lysis of red blood cells
It causes cardiac arrest
It breaks the electron transport chain

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Chemistry
The gas that usually causes explosions in coal mines is

Air
Methane
Hydrogen
Carbon monoxide

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Chemistry
The element with highest ionization potential is

Helium
Carbon
Boron
Oxygen

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MORE MCQ ON Chemistry

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