Wednesday, 17 July 2019

Chemistry MCQs | General Knowledge Quiz

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Chemistry Objective Questions For Competitive Exams



Q.1: A limiting reactant is one which----------- ?

  1. is taken in lesser quantity in grams as compared to other reactants
  2. is taken in lesser quantity in volume as compared to other reactants
  3. gives the maximum amount of the product which is required
  4. gives the minimum amount of the product under consideration

D

Q.2: The gas used in manufacturing of urea fertilizer--------- ?

  1. C2H6
  2. C2H4
  3. C2H2
  4. CH4

D

Q.3: Stronger is the oxidizing agent greater is the--------- ?

  1. Oxidation potential
  2. Redox potential
  3. e.m.f of cell
  4. standard reduction potential

D

Q.4: When toluene reacts with chlorine in sunlight the first major product is------- ?

  1. Benzy1 chloride
  2. Benzal dichloride
  3. O-chlorotoluene
  4. O-chlorotoluene and P-chlorotoluene

A

Q.5: Which one does not exhibit aldol condensation---------- ?

  1. Ethanal
  2. Acetone
  3. Benzaldehyde
  4. Butanone

C

Q.6: According to vital force theory--------- ?

  1. Oorganic compounds can be synthesized from inorganic compounds
  2. organic compounds cannot be synthesized from inorganic compounds
  3. organic compounds can be synthesized by animals
  4. organic compounds can be synthesized by plants

B

Q.7: Chemical properties of first member of homologous series with respect to other members are------ ?

  1. same
  2. different
  3. depends upon number of C atoms
  4. depends upon number of H atoms

A

Q.8: Methane is used in power generation in chemical industries being a-------- ?

  1. natural gas
  2. good caloric value
  3. cheaper
  4. All

C

Q.9: Isomerism which is present only in alkene is--------- ?

  1. structural isomerism
  2. metamerism
  3. cis-trans isomerism
  4. both b and c

C

Q.10: First organic compound synthesized in laboratory was -------- ?

  1. tartaric acid
  2. ethyl alcohol
  3. methanol
  4. urea

D


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