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Chemistry

Chemistry
A pungent smell often present near the urinals is due to

Urea
Chlorine
Ammonia
Sulphur-di- oxide

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Chemistry
Commercially, sodium bicarbonate is known as

Baking soda
Soda ash
Washing soda
Bleaching powder

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Chemistry
Among the following the hardest metal is

Tungsten
Iron
Platinum
Gold

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Chemistry
Which halide is used in making sensitive emulsion on photograhic film?

Silver iodide
Sodium chloride
Silver chloride
Silver bromide

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

China, India, European Union, USA
China, USA, European Union, India
European Union, China, USA, India
USA, India, China, European Union

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Chemistry
The green colour seen in firework displays is due to the chloride salt of :

Barium
Calcium
Strontium
Sodium

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