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Chemistry

Chemistry
Which one is the most reactive halogen

Bromine
Fluorine
Chlorine
Iodine

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Chemistry
Carbon monoxide is an inflammable gas. Which one of the following is also inflammable?

Hydrogen
Oxygen
Nitrogen
Helium

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

NO2
SO2
SO3
N2O

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Chemistry
The chemical name of rat poison is

Zinc oxide
Potassium cyanide
Zinc phosphide
Lead nitrate

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Chemistry
Acid rain is caused due to emission of which of the following in to the atmosphere ?

Carbon dioxide and carbon monoxide
Ozone and carbon dioxide
Oxides of nitrogen and sulphur
Carbon monoxide and nitrogen

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Chemistry
The heat required to raise the temperature of body by 1 K is called

None of these
water equivalent
specific heat
thermal capacity

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