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MCQs4All - Chemistry MCQs for NTS, FPSC, CSS, IELTS, TOEFL

Question. Decrease in oxidation number is called__________________?
  1. oxidation
  2. reduction
  3. oxidation-reduction
  4. all of above represent same entity
Question. The solid particles only posses_____________________?
  1. Translational motion
  2. Vibrational motion
  3. Rotational motion
  4. All of above motions
Question. Photographic plates are coated with a thin film of _________________?
  1. AgNO3
  2. AgI
  3. AgCl
  4. AgBr
Question. At which electrode the reduction of the solution is occurring in Al-Ag cell_____________?
  1. A
  2. Ag
  3. Both
  4. Neither
Question. Hypochlorous acid is used for disinfecting the water it reacts with the dissolved ammonia producing___________________?
  1. NH2Cl
  2. NHCI2
  3. NCI2
  4. all of the above
Question. Reacting bromine with benzene in the presence of sunlight will result in_______________?
  1. The rupturing of benzene ring
  2. Substitution reaction
  3. Addition reaction
  4. No-reaction

Chemistry MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers
Question. 1 mole of electron has mass in microgram_________________?
  1. 1.008 x 10-3
  2. 5.5 x 10-4
  3. 1.84 x 10-4
  4. 1.673 x 10-3
Question. Isomorphic substances have _______________?
  1. Same physical and chemical properties
  2. Same physical and different chemical properties
  3. Different physical and same chemical properties
  4. Different physical and chemical properties
Question. For 3rd order reaction the hhalf life is inversely proportional to initial concentration of reactants__________________?
  1. Single
  2. Square
  3. Cube
  4. Raise to power four
Question. The geometry of ammonia is___________________?
  1. Tetrahedral
  2. Square planner
  3. Trigonal bipyramidal
  4. Trigonal Pyramidal
Question. Enthalpy of a reaction can be measured by ____________________?
  1. glass calorimeter
  2. manometer
  3. Barometer
  4. thermometer
Question. The type of filtering media used for filtration depending upon____________________?
  1. Nature of reactants
  2. Nature of crucible
  3. Nature of product
  4. Nature of precipitate
Question. Benzene is heated in air with V2O5 at 450°C it undergoes________________?
  1. Substitution reaction
  2. Addition reaction
  3. Elimination reaction
  4. Oxidation reaction
Important MCQs
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Question: All of the following are true for Platyhelminthes except____________?
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Question: Co-ordination in man is brought about by___________?
Question: Fimbria or pilus is also known as
Question: Heating element of an electric heater is made up of___________?
Question: The half cells are interconnected through________________?
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