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Chemistry

Chemistry
Isobars are lines joining places having equal

Rainfall
Pressure
Population
Height above sea-level

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Chemistry
Aerated water contains

NO2
SO2
H2
CO2

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Chemistry
Solder metal is an alloy of

Lead and tin
Copper and tin
Copper and zinc
Lead and antimony

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Chemistry
The major harmful gas emitted by automobile vehicles which causes air pollution is

Carbon Monoxide
Ozone gas
Carbon dioxide
Methane

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Chemistry
The aqueous solution of potassium chloride is

A weak electrolyte
A strong electrolyte
A non-electrolyte
Initially weak and then become a strong electrolyte

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Chemistry
Catalytic converters are generally made from :

Carbon
Transition metals
Hydrogen
Alkaline metals

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