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Chemistry

Chemistry
Tear gas used by the police to disperse the mob contains

Ammonia
Chlorine
Hydrogen sulphide
Carbon dioxide

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Chemistry
Which of the following in automobile exhaust can cause cancer?

Oxides of nitrogen
Carbon monoxide
Lead
Polyclinic hydrocarbons

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

CaBr2
Cacl2
Cal2
CaF2

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Chemistry
Which one is the naturally occuring heaviest element

Protactinium
Mercury
Thorium
Uranium

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

5.05 gram
3.05 gram
4.05 gram
2.05 gram

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Chemistry
The metal extracted from Bauxite is :

Silver
Copper
Aluminum
Manganese

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