Chemistry MCQs Online Quiz Test 2

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Q.1: Which of the following element doesnot show allotropy———?

  1. Carbon
  2. Arsenic
  3. Nitrogen
  4. Sulphur

C

Q.2: Purines and pyrimidines are———?

  1. Enzymes
  2. Nitrogenous bases
  3. Carbohydrates
  4. Lipids

B

Q.3: All the transition elements show———?

  1. Similar physical properties
  2. Similar chemical properties
  3. Both A and b
  4. None

D

Q.4: In solids the temperature is the measure of———?

  1. Average kinetic energy of molecules
  2. Vibrational kinetic energy
  3. Translational kinetic energy
  4. None of the above

B

Q.5: Fruit juices and fizzy drinks such as lemonade are often sold in aluminium cans. What is the most important reason aluminium is a suitable metal ?

  1. aluminium can be recycled
  2. aluminium has very low density
  3. aluminium is the most abundant metal in the earth crust
  4. aluminium is resistant to corrosion by organic acids.

D

Q.6: On heating aldehydes with Fehlings solution we get a precipitate whose colour is———?

  1. pink
  2. black
  3. yellow
  4. brick red

D

Q.7: What is maximum number of electrons in an orbital with m (magnetic quantum number) = 3 ?

  1. 6
  2. 4
  3. 3
  4. 2

D

Q.8: Which catalyst is used in contact process ?

  1. Fe2O3
  2. V2O5
  3. SO3
  4. Ag2O

B

Q.9: Which of the following elements has greater 1st ionization energy———?

  1. B
  2. C
  3. N
  4. O

C

Q.10: Which of the following molecule is polar———?

  1. CCI4
  2. CO2
  3. BF3
  4. none of the above

D