12th Class Chemistry MCQs

Full book Important 12th Class Chemistry MCQs with Answers written by Honorable Professor Mr. Shahryar Afridi Sahib. These notes are very helpful in the preparation of mcqs of 12th Class Chemistry MCQs for the students of the intermediate and these are according to the paper patterns of all Punjab boards.

Summary and Contents:
Topics which are discussed in the notes are given below:
  • Important 12th class chemistry mcqs pdf for Intermediate part-II students.
  • You have four choices for each objective type question as A, B, C and D. The choice which you think is correct.
  • Important most important mcqs of chemistry class 12 for Intermediate part-II students.
  • 1. Micro-nutrient is required in quantity for plant growth ranging from:  (a) 4-40gm  (b) 6-200gm  (c) 6-200kg  (d) 4-40kg
  • Important 12th class chemistry objective for Intermediate part-II students.
  • 2. Which three elements are needed for healthy growth for plants?  (a) N, S, P  (b) N, Ca, P  (c) N, P, K  (d) N, K, C
  • Important important mcqs of chemistry class 12 for Intermediate part-II students.
  • 3. Ammonium Nitrate fertilizer is not useful for which crop:  (a) Wheat  (b) Cotton  (c) Sugar Cane  (d) Paddyrice
  • Important 12 chemistry objective for Intermediate part-II students.
  • 4. The nitrogen present in some fertilizers helps plants?  (a) To fight against diseases  (b) To produce fat  (c) To undergo photosynthesis  (d) To produce protein
  • Important important mcqs of chemistry class 12 pdf for Intermediate part-II students.
  • 5. Phosphorus helps the growth of:  (a) Root  (b) Leaf  (c) Steam  (d) Seed
  • Important 12 ka chemistry ka objective question for Intermediate part-II students.
  • 6. Which is not a calcarious material?  (a) Clay  (b) Limestone  (c) Marble  (d) Chalk
  • 7. How many zones through which the charge passes in a rotary kiln?  (a) 4  (b) 3  (c) 2  (d) 5
  • Important 12th chemistry objective for Intermediate part-II students.
  • 8. The wood paper is derived from the name of which reedy plant:  (a) Rose  (b) Sun Flower  (c) Papyrus  (d) Water
  • 9. Woody raw material for paper pulp is obtained from:  (a) Cotton  (b) Biogases  (c) Poplar  (d) Rice Straw
  • Important 12th chemistry objective question for Intermediate part-II students.
  • 10. Ecosystem is smaller unit of:  (a) Lithosphere  (b) Hydrosphere  (c) Atmosphere  (d) Biosphere
  • 11. Which of following element is not abundantly present in earth’s crust?  (a) Siloam  (b) Aluminum  (c) Sodium  (d) Oxygen
  • 12. A single chloride free radical can destroy how many ozone molecules?  (a) Carbonic Acid  (b) CO2  (c) SO2  (d) NO
  • Important 12th class chemistry objective question for Intermediate part-II students.
  • 13. A single chloride free radical can destroy how many ozone molecules?  (a) 100  (b) 100,000  (c) 100,00  (d) 10
  • 14. Peroxyacetyl nitrate (PAN) is an irritant to human beings and it affects:  (a) Eyes  (b) Ears  (c) Stomach  (d) Nose
  • Important class 12 chemistry objective questions pdf for Intermediate part-II students.
  • 15. The main pollutant of leather tanneries in the waste water is:  (a) Lead  (b) Chromium (VI)  (c) Copper  (d) Chrommium (III)
  • Important 12th ka chemistry ka objective for Intermediate part-II students.
  • 16. In purification of portable water, the coagulant used is:  (a) Nickel sulphate  (b) Copper Sulphate  (c) Barium Sulphate  (d) Aluminum Sulphate(Alum)
  • 17. The newspaper can be recycled again and again many times as:  (a) 5  (b) 3  (c)  4  (d)  2
  • Important 12th ka chemistry objective for Intermediate part-II students.
  • 18. Vegetable oils are:  (a) Polyesters  (b) Glycerides of unsaturated fatty acids  (c) Essential oils  (d) Fatty acids
  • 19. The reaction between fat and NaoH is:  (a) Esterification  (b) Hydogenolysis  (c) Fermentation  (d) Saponification
  • Important chemistry 12 objective for Intermediate part-II students.
  • 20. Which one of the following is a water-soluble vitamin?  (a) Niacin  (b) Riboflavin  (c) Trypsin  (d) Ascrobic Acid
  • 21. Which of the following nitrogenous base is not present in RNA?  (a) Cytosine  (b) Adenine  (c) Thymine  (d) Uracil
  • Important chemistry 12th objective for Intermediate part-II students.
  • 22. The polymer which can be softened and hardened by heating and cooling is called:  (a) Thermoplastic  (b) Thermosetting  (c) Proteins  (d) Fats
  • 23. Which of these polymers is a synthetic polymer?  (a) Animal fat  (b) Starch  (c) Cellulose  (d) Polyester
  • Important chemistry class 12 objective questions for Intermediate part-II students.
  • 24. A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called:  (a) Fiber  (b) Plastic  (c) Varnish  (d) Polyamide resin
  • Important chemistry objective 12th for Intermediate part-II students.
  • 25. Which of the following is an addition polymer?  (a) Polyester  (b) Polystyrene  (c) Nylon 6, 6  (d) Terylene
  • 26. The fiber which is made from acrylonitrile as monomer?  (a) PVC  (b) Polyester fiber  (c) Rayon Fiber  (d) Acrylic fiber
  • Important chemistry objective question 12th for Intermediate part-II students.
  • 27. Which one of the following is mono-saccharide:  (a) Fructose  (b) Sucrose  (c) Starch  (d) Cellulose
  • 28. Which of the following element is not present in all proteins?  (a) Carbon  (b) Hydrogen  (c) Nitrogen  (d) Sulphur
  • Important class 12 chemistry objective questions for Intermediate part-II students.

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