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Chemistry - Mock Test 66

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Question 651

Which is the principal ore of Mercury ?

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Question 652

What is aquaphobia, also referred as hydrophobia, the fear of ?

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Question 653

Which organism is responsible for alcohol fermentation?

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Question 654

As which one of the following does carbon occur in its purest form in nature?

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Question 655

What type of reaction is carried out by the lipase in the digestion of fats ?

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Question 656

What is the pH of pure water ?

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Question 657

Several blocks of the megnesium are fixed to the bottom of a ship to ?

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Question 658

What is jeweler's rouge ?

A very fine powder of ferric oxide is known as "jeweler's rouge", "red rouge", or simply rouge. It is used to put the final polish on metallic jewelry and lenses, and historically as a cosmetic. Rouge cuts more slowly than some modern polishes, such as cerium(IV) oxide, but is still used in optics fabrication and by jewelers for the superior finish it can produce. When polishing gold, the rouge slightly stains the gold, which contributes to the appearance of the finished piece. source - wikipedia

Question 659

Out of 92 naturally occurring chemical elements how many are considered as bio?

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Question 660

What is the chemical symbol for Copper?

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