Chemistry - Mock Test 37

Question 361

Which of the following equations represents Photosynthesis?

A) 6CO2 + 6H2O -----> C6H12O6 + 6O2 B) C6H12O6 + 6O2 -----> CO2 + 6H2O C) CO2 + H2O -----> C6H12O6 + 6O2 D) 6O2 + 6H2O -----> C6H12O6 + 6CO2

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Question 362

Acid Precipitation is caused by a mix of?

A) Hydrogen, Oxygen, and Saline B) Water, Soil, and Air C) Respiration, Carbonic Acids, and Seawater D) Sulfur Dioxide, Carbon Dioxide, Nitrogen Oxides

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Question 363

What are the Monomers that make up Proteins?

A) Amino acids B) Nucleotides C) Disaccharides D) Chaperones

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Question 364

Which statement best describes electrons?

A) Electrons orbit around the nucleus B) Electrons are composed of protons and neutrons C) ) Electrons reside in the nucleus D) Electrons have a positive charge

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Question 365

Which of the following is not a pure substance?

A) Water B) Oxygen C) Carbon dioxide D) Milk

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Question 366

Which of the following are chemical changes A- Cooking of Food B- Digestion of Food C- Freezing of water D- Water is heated up?

A) A & B B) A, B & C C) C & D D) All the above

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Question 367

Which of the following is a Decomposition Reaction?

A) 2HgO ----> 2Hg + O2 B) 6NaNO3 ----> 6NaNO2 + 3O2 C) ZnCO3 ----> ZnO + CO2 D) All the above

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Question 368

Heated saw dust catches fire when a drop of concentrated nitric acid is added to it. This is due to?

A) reduction B) dehydration C) oxidation D) dehydrogenation

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Question 369

The law of constant proportions was enunciated by?

A) Avogadro B) Proust C) Dalton D) Berthelot

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Question 370

An element which is preserved under water is?

A) red phosphorus B) white phosphorus C) sodium D) sulphur

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