Chemistry MCQs Online Quiz Test 35

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Online Chemistry Entry Test MCQs With Answers

Q.1: Which one of the following statement is not correct about benzene ?

  1. On hydrogenation 208 KJ/mole is liberated
  2. C-H bond length in benzene is 1.09 A?
  3. Molecular mass of benzene is 78.108
  4. Resonance energy of benzene is 150.5 K Cal/mole


Q.2: Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide And aluminum chloride is known as———?

  1. Dows process
  2. Friedel And Craft acylation
  3. Friedel And Craft alkylation
  4. Clemmenson reduction


Q.3: Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?

  1. Toluene
  2. Ethyl benzene
  3. n-propyl benzene
  4. All


Q.4: What is the molecular formula of Benzenetriozonide ?

  1. C6H6O9
  2. C6H5O8
  3. C6H5O9
  4. C6H6O6


Q.5: The hydrolysis of Benzenetrizonide will yield three moles of———-?

  1. Glyoxime
  2. Benzaldehyde
  3. Glycol
  4. Glyoxal


Q.6: In benzene sulphonic acid the sulphonic group is attached with benzene ring through ———-?

  1. Hydrogen
  2. Oxygen
  3. Sulphur
  4. OH


Q.7: Aniline is a derivative of benzene which contains———?

  1. Imino group
  2. Amino group
  3. Amide group
  4. Nitro group


Q.8: Which one can form complex ?

  1. Na
  2. Cr
  3. Li
  4. K


Q.9: Addition of 2% gypsum in cement——–?

  1. Triggers hydration
  2. Triggers hydrolysis
  3. Prevents rapid hardening
  4. all of the above


Q.10: Phenanthrene is a fused polycyclic compound contains —– benzene rings ?

  1. Two
  2. Three
  3. Four
  4. Five