Chemistry 2nd year chapter 15 important mcqs solved pdf

Download or Preview 2nd Year Chemistry MCQs With Answers Chapter 15 for both Entry Test and Board Exams. These are important 2nd year chemistry mcqs from past papers.

IMPORTANCE OF THESE MCQS

It is tough and difficult task to solve chemistry 2nd year mcqs. Students must have proper preparation of chemistry 2nd year mcqs for excellent marks in chemistry 12. All the important mcqs related to chapter 15 of 2nd year Chemistry are here for you. These questions are taken from past papers of 2nd year chemistry of all Punjab Board of Pakistan as ;

Bahawalpur Board

D.G.Khan Board

Faisalabad Board

Gujranwala Board

Lahore Board

Multan Board

Rawalpindi Board

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These questions (MCQs) are top repetitive in previous papers. Each question has a detailed answer explanation. In this way you learn from your mistakes

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About This Chapter

Chapter no. 15 "Common chemical industries in Pakistan" of Chemistry 2nd year enables the students to have the brief description of the processes along with flow sheet diagrams and the reactions involved in the important industries like fertilizers, cement and paper. This "Chemistry 2nd year chapter 15 important mcqs solved pdf " covers all important mcqs that are top repetitive in past papers relevant to above mentioned topics.

👉For Answers of following questions click the show answer button.

1. Which three elements are needed for healthy growth of plants?

(A) N, S, P

(B) K, K, C

(C) C, P, Ca

(D) N, P, K

(D) N, P, K

2. Micro nutrient is required in quantity for plant growth :

(A) 4-40 gm

(B) 6-200 gm

(C) 5-15 kg

(D) 500 gm

(B) 6-200 gm

3. The macro nutrient required per acre is:

(A) 5-200 kg

(B) 100-300 kg

(C) 4-40kg

(D) 50-100kg

(A) 5-200 kg

4. Phosphorus helps in the growth of 

(A) Root

(B) Leaf

(C) Stem

(D) Seed

(D) Seed

5. Ammonium nitrate fertilizer is useful for which crop?

(A) Wheat

(B) Cotton

(C) Sugar Cane

(D) Paddy rice

(D) Paddy rice 

6. Which is not a calcareous material?

(A) Clay

(B) Limestone

(C) Marble

(D) Chalk

(A) Clay

7. How many zones through which the charge passes in a rotatory kiln?

(A) 4

(B) 3

(C) 2

(D) 5

(A) 4

8. Which one is argillaceous material?

(A) Marble

(B) Lime

(C) Marine shell

(D) Clay

(D) Clay

9. Woody raw material for paper pulp is obtained from:

(A) Cotton

(B) Rose

(C) Rice straw

(D) Poplar

(D) Poplar

10. The word paper is derived from the name of which reedy plant?

(A) Rose

(B) Sun flower

(C) Papyrus

(D) Water Hyacinth

(C) Papyrus

11. Macronutrient for soil is:

(A) N₂

(B) Cu

(C) Zn

(D) Fe

(A) N₂

12. The percentage of nitrogen in urea is:

(A) 66 %

(B) 56 %

(C) 46 %

(D) 36 %

(C) 46 %

13. Which component has greater %age in cement?

(A) Magnesia

(B) Alumina

(C) Lime

(D) Silica

(D) Silica SiO₂ 

14. What is the %age of gypsum in the cement?

(A) 4 - 5 %

(B) 2 - 4 %

(C) 7 - 9 %

(D) 1 - 2 %

(A) 4 - 5 %

15. Which substance is used as filler in paper making?

(A) Silica

(B) Lime

(C) Starch

(D) Cellulose

(C) Starch

16. What is the %age of moisture in paper?

(A) 4 - 5 %

(B) 2 - 4 %

(C) 6 - 8 %

(D) 1 - 2 % 

(C) 6 - 8 %

17. Which one is inorganic fertilizer?

(A) Manure

(B) Urea

(C) Ammonium nitrate

(D) None of these

(C) Ammonium nitrate

18. Nitrogen present in some fertilizers helps plant to:

(A) Fight against diseases

(B) Produce fat

(C) Photosynthesis

(D) Protein production

(D) Protein production

Visit Also >> Chemistry 12 Important Short & Long Qs PDF

👉Other Chapters MCQs of 2nd year Chemistry (PTB)