Chemistry Questions Answers

• 71. Faraday's Law is associated with

  1. Reaction of gases
  2. Pressure of gases
  3. Electrolysis
  4. Temperature and pressure

  Answer And Explanation

  Answer: Option C

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• 72. Enzymes are
  

  1. Fatty acids
  2. Carbohydrates
  3. Nucleic acids
  4. Proteins

  Answer And Explanation

  Answer: Option D

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• 73. Elements that show the properties of both metals and non metals are called ?
  

  1. metalloids
  2. allotropes
  3. alloys
  4. colloids

  Answer And Explanation

  Answer: Option A

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• 74. Ozone is :

  1. Non-magnetic
  2. Paramagnetic
  3. Ferromagnetic
  4. Diamagnetic

  Answer And Explanation

  Answer: Option D

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• 75. Petroleum is found in ?

  1. Marshy land
  2. Metamorphic rocks
  3. Igneous rock
  4. Sedimentary rocks

  Answer And Explanation

  Answer: Option D

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• 76. Permanent hardness of water is due to the presence of ?

  1. Magnesium bicarbonate
  2. Calcium bicarbonate
  3. Sodium bicarbonate
  4. Calcium sulphate

  Answer And Explanation

  Answer: Option D

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• 77. What is laughing gas ?
  

  1. nitrous oxide
  2. nitric oxide
  3. nitrogen oxide
  4. nitrogen peroxide

  Answer And Explanation

  Answer: Option A

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