Quiz  /  General Science Chemistry MCQ Quiz Questions and Answers

  • 1. 
    Which of the following is the correct order in terms of Iron content?

  • Magnetite > Haematite >Siderite > Limonite
  • Haematite> Magnetite >Siderite > Limonite
  • Haematite > Magnetite > Limonite > Siderite
  • Magnetite > Haematite > Limonite > Siderite

  • 2. 
    Which of the following methods is used to purify Titanium metal?

  • Hall-Heroult process
  • van Arkel method
  • Mond process
  • None of the above

  • 3. 
    Highest percentage of nitrogen is found in which among the following fertilizers among the given options?

  • Calcium ammonium nitrate
  • Ammonium nitrate
  • Calcium nitrate
  • Urea

  • 4. 
    Which among the following is known as Quick Lime?

  • CaO
  • CaCO2
  • Ca(OH)2
  • CaCl2

  • 5. 
    Carnotite is a mineral of which among the following metals?

  • Lead
  • Uranium
  • Aluminium
  • Iron

  • 6. 
    Consider the following comparisons of Diesel with Gasoline:

  • Only 1
  • 1 & 2
  • 1, 2 & 3
  • None of them

  • 7. 
    In which among the following respects, the white Portland cement is different from the ordinary gray Portland cement?

  • Only 2, 3 & 4
  • Only 1, 2 & 3
  • Only 1, 2 & 4
  • Only 1 & 4

  • 8. 
    Which of the following was discovered in Milikan’s oil drop experiment?

  • Charge on a proton
  • Charge on an electron
  • Charge to mass ratio of an electron
  • Mass of a Hydrogen atom

  • 9. 
    Which of the following reactions represents changing of green colour of ferrous sulphate?

  • Double Displacement reaction
  • Displacement reaction
  • Combination reaction
  • Decomposition reaction

  • 10. 
    What is the change in the rate constant for a chemical reaction when temperature rises by 10° C?

  • The rate constant is constant
  • The rate constant is nearly doubled
  • The rate constant is nearly halved
  • The rate constant becomes four times

  • 11. 
    Choose the correct statement about covalent compounds?

  • The forces of interaction between them is weak
  • They are poor conductors of electricity
  • Both a and b
  • None of the above

  • 12. 
    Which of these laws state that limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte?

  • Nernst Equation
  • Kohlrausch law
  • Afbau Principle
  • Faraday’s law of electrolyte

  • 13. 
    Consider the following statements:

  • Only 1
  • Only 2
  • Both 1 & 2
  • Neither 1 nor 2

  • 14. 
    The patient is instructed to drink which of the following solutions before undergoing radiological examinations?

  • Barium sulphate
  • Sodium chloride
  • Strontium phosphate
  • Germanium tetrachloride

  • 15. 
    What do we call the compounds formed by the linking of carbon by single bonds in between them?

  • Saturated compounds
  • Unsaturated compounds
  • Monovalent compounds
  • Ionic compounds

  • 16. 
    Which of the following chemicals is used as a molecular sieve to filter common salts from seawater to produce potable water?

  • Graphene oxide
  • Phosgene
  • Sodium hypochlorite
  • Calcium carbonate

  • 17. 
    Which of the following relations between Kinetic energy and Potential energy is true about solids?

  • Kinetic energy = Potential energy
  • Kinetic energy > Potential energy
  • Kinetic energy >> Potential energy
  • Kinetic energy < Potential energy

  • 18. 
    What is the force that is required to produce unit elongation in a wire known as?

  • Bulk modulus
  • Thermal strain
  • Thermal stress
  • Force constant

  • 19. 
    What will happen if a wire of length L is cut into two or more parts?

  • each part can hold half the weight as full length wire
  • each part can hold the same weight as full length wire
  • each part can hold twice the weight as full length wire
  • None of the above

  • 20. 
    What is the general trend for atomic radii of alkali metals as we move down the group?

  • it increases
  • it decreases
  • it remains constant
  • None of the above

  • 21. 
    Which of the following compound is prepared using Ostwald’s process?

  • Potassium permanganate
  • Hydrochloric acid
  • Nitric acid
  • None

  • 22. 
    If we take 1 kg of iron and let it rust, and none of the rust falls off, then the total weight will be___?

  • Less than 1 Kg
  • More than 1 Kg
  • Exact 1 Kg
  • More or Less than 1 Kg

  • 23. 
    From which element in the modern periodic table, the 3d transition series starts?

  • Zinc
  • Iron
  • Scandium
  • Copper

  • 24. 
    Which of the following Group in the modern periodic table contains Halogens?

  • Group 18
  • Group 1
  • Group 17
  • Group 2

  • 25. 
    Which of the following is true about a water molecule?

  • It has a bent-shaped structure
  • The bond angle is 120°
  • It is a non-polar solvent
  • All of the above

  • 26. 
    Which of the following is correct about Ionic compounds?

  • They have high melting and boiling points
  • They are soluble in non-polar solvents
  • They are usually gases in nature
  • All of the above

  • 27. 
    What is the PH of human blood?

  • 8.2
  • 7.4
  • 6.5
  • 7

  • 28. 
    What can be the probable pH of Milk of Magnesia?

  • 2
  • 5.5
  • 7
  • 10.5

  • 29. 
    Which of the following is not a compound of carbon?

  • Cinnabar
  • Acetic acid
  • Chloroform
  • Methane

  • 30. 
    Which of these alkanes has higher boiling point?

  • Butane
  • Methane
  • Ethane
  • Hexane

  • 31. 
    Which of these is a Thermoplastic polymer?

  • Terylene
  • Polythene
  • PVC
  • All of the above

  • 32. 
    Where does the oxidation takes place in a Galvanic cell?

  • Anode
  • Cathode
  • Oxidation does not take place
  • None of the above

  • 33. 
    Which of the following factors affect the electronic conductance of an electrolytic solution?

  • the nature of the electrolyte added
  • size of the ions produced and their solvation
  • the nature of the solvent and its viscosity
  • All of the above

  • 34. 
    What is the reason for the presence of the vast number of organic compounds in nature?

  • Carbon exists in free state
  • Catenation property of carbon
  • Low atomic mass of carbon
  • None of the above

  • 35. 
    Which is the first member of Alkyne series?

  • Methyne
  • Acetylene
  • Propyne
  • Ethene

  • 36. 
    Which of these polymers is formed by the polymerization of the dimer of lactic acid?

  • PLA
  • PCL
  • PGA
  • None of the above

  • 37. 
    Which of the metals is most reactive out of the given options?

  • Potassium
  • Sodium
  • Calcium
  • Magnesium

  • 38. 
    Which of the following would come in use to treat diseased skin surfaces?

  • Analgesics
  • Antiseptics
  • Antihistamines
  • None of the above

  • 39. 
    Who was the first person to devise a periodic table of chemical elements arranged in order of their relative atomic masses?

  • Dmitri Mendeleev
  • John Dalton
  • John Alexander Reina Newlands
  • Johann Wolfgang Dobereiner

  • 40. 
    Due to which of the following acids, Milk tastes sour when kept in the open for sometime?

  • Lactic Acid
  • Citric Acid
  • Acetic Acid
  • Carbonic Acid
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