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Chemistry

Chemistry
Which of the following gases is mixed with oxygen for breathing by divers in aqua lungs?

Helium
Nitrogen
Hydrogen
Methane

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Chemistry
Hamburger effect is otherwise known as–

Anaerobic metabolism
Chloride shift
Sodium pump
Respiratory product

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Chemistry
Combustion of a candle is a/an

Endothermic reaction
Physical change
Exothermic reaction
Photochemical reaction

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Chemistry
Which among the following elements is found in maximum percentage in the human body ?

Hydrogen
Carbon
Nitrozen
Oxyzen

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Chemistry
Oxide of sulphur present in the atmosphere are washed down by rains to cause :

Depletion of fossil fuel reserves
Eutrophication in lakes
Industrial smog formation
Lowering of pH of soil

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Chemistry
Which one of the following is found in kidney stones?

Calcium acetate
Calcium oxalate
Sodium oxalate
Sodium chloride

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MORE MCQ ON Chemistry

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