Chemistry 10th Class Guess Paper 2021 | Punjab Board

Welcome to the FSc Online. Here we are providing the matric Part-II (10th class) annual exams 2021 guess papers. The Punjab Board has announced the 10th class annual exams date sheet 2021. According to the announced schedule, the first paper of the 10th will be on 29 July 2021. So, to assist the students, here we are providing Chemistry guess papers. 

This year, the Punjab Board announced a smart syllabus of 10th class through which students can study specific topics. At the same time, through the guess papers, students get an idea regarding the important points in the syllabus. Through these guesses, you will hopefully secure excellent marks in the annual exams. However, the uploaded guess papers are according to the topics of smart syllabus. Thus, to get the guess papers, scroll down your screen.

See Also: 10th Class All Subjects Punjab Board Paper Pairing Scheme 2023

10th Class Chemistry (Guess Paper) important Questions

Short Questions

1. Reversible & irreversible reaction
2. Relationship between active mass & rate of reaction
3.  H+ ion act as a lewis acid. Why?
4. What are salts? Give two examples
5. Define pH. What is the pH of pure water?
6. Acid/Base Theories
7. uses of sodium silicate, calcium chloride, calcium oxide
8. Define isomerism. How many isomers does pentane have?
9. Define Catenation
10. Vital Force Theory
11. What is the dot & cross formula?
12. Define open-chain/acyclic compound.
13. Define alicyclic/Non-Benzenoid compounds.
14. Why are alkanes called “Paraffins”? 
15. Define open-chain hydrocarbons & Closed 
16. Define Biochemistry
17. Diff. b/w essential & nonessential amino acid 
18. Sources & uses of vitamin A, Vitamin D
19. Difference b/w ghee & oil 
20. Difference b/w ghee & oil 
21. Why is CO2 called a greenhouse gas?
22. Diff. b/w atmosphere & environment
23. How are sulfur-containing compounds emitted naturally?
24. Define pollutants. Differentiate b/w primary & secondary pollutants.
25. Define the Ozone hole & where was it noticed first? Effects of ozone depletion 
26. Define capillary action
27. Why are non-polar compounds insoluble in water? 
28. Soft water & hard water. How can the temporary hardness of water be removed by Clark’s method? 
29. Metallurgy
30. Difference b/w Minerals & Ores
31. Difference b/w crude oil & residual oil. Difference b/w diesel oil & fuel oil.
32. Define Roasting. How is it carried out? 
33. State gravity separation and Electromagnetic separation
34. Which raw materials are used in the manufacturing of urea?
35. How is NaHCO3 converted to Na2CO3?

Long questions

1. Give the macroscopic characteristics of forward, reverse reactions & dynamic equilibrium.
2. Explain the law of mass action & derive the expression for the equilibrium constant for a given reaction A +B>< C+D / general reaction.
3. Explain the importance of the equilibrium constant.
4. What are indicators? How they can be used to determine the pH of acidic, basic & and neutral solutions
5. Explain the Bronsted Lowry concept of an acid and base with examples.
6. All Acid/Base Theories
7. Define homologous series. Write its characteristics.
8. Write uses of ethane, ethane, methane & acetylene.
9. functional group
10. Define monosaccharides & oligosaccharides. Give their characteristics
11. Explain the sources & uses of proteins & lipids. 
12. Define vitamins. Discuss the types, sources, uses & importance of vitamins. Also, write the effects of its deficiency.
13. Define atmosphere. How is the atmosphere divided into different layers? Explain.
14. Define global warming. Discuss its effects.
15.  Define acid rain. How does it form & what are its effects? 
16. . Describe the structure & properties of water in detail. 
17. Water is a universal solvent. How?
18. Explain important water-borne diseases. How can these be prevented?
19. Define following terms: (a) minerals (b) ores (c) gangue (d) slag 
20. Write a note on ammonia Solvey’s process.
21. How is urea manufactured on a commercial scale? Explain with the help of a diagram.