(10th April) Chemistry Class 10th Guess Paper 2023. All Important Long, Short Questions with MCQs PDF Download.
We have the Chemistry Class 10 Guess Paper 2023 available for you, which is designed according to the curriculum prescribed by the Punjab Boards. Guess papers hold immense significance in a student’s academic journey as they contain crucial questions that are highly likely to be featured in the final exams.
Moreover, these guess papers provide comprehensive insights into the paper patterns, making them invaluable resources as the annual exams for tenth graders draw near.
Also Check: 10th Class Chemistry Pairing Scheme 2023 for All Boards
Chemistry Class 10th Guess Paper 2023 Important Questions
Unit 9
Important Short Questions
1. Reversible & irreversible reaction
2. Dynamic equilibrium & Static equilibrium
3. Law of mass action
4. Equilibrium constant
5. How dynamic equilibrium constant is established
6. Relationship b/w active mass and rate of reaction
7. How direction of a reaction can be predicted?
Important long questions:
1. What is meant by a complete & incomplete reaction? Why reactions do not go to completion?
2. Give the macroscopic characteristics of forwarding reactions, reverse reactions & dynamic equilibrium.
3. State the law of mass action and derive the expression for the equilibrium constant for a given reaction A +B>< C+D / general reaction.
4. Explain the importance of the equilibrium constant.
5. Describe a reversible reaction with the help of an example & graph.
Unit 10
Important Short Questions
1. Define Acid & base according to Arrhenius.
2. Write the limitations of Arrhenius’s concept.
3. What is Bronsted Lowry’s Theory?
4. Differentiate b/w Lewis acid & base.
5. Why H+ ion acts as a Lewis acid?
6. Give four uses of sulphuric acid.
7. Define pH. What is the pH of pure water?
8. Define the pH of the solution.
9. Define indicators.
10. What are salts? Give two examples.
11. Give four uses of salts.
12. Write four uses of sodium silicate, calcium chloride, calcium oxide
13. Differentiate b/w acidic salts & basic salts.
Important long questions:
1. Compare the physical properties of acids & bases with examples.
2. Explain the Arrhenius concept of acids & bases with examples. What are the limitations of this concept?
3. Explain Lewis’s concept of acid & a base.
4. What are indicators? How they are used to determine the pH of acidic, basic, and neutral solutions.
5. Define salts. Explain the characteristics and uses of some important salts. 6. Give the application/uses of some important bases.
7. Explain Bronsted Lowry’s concept of an acid and base with examples.
Unit 11
Important Short Questions
1. Define the Vital force theory.
2. Write the definition of organic compounds
3. Define Catenation.
4. Briefly explain the molecular formula with an example.
5. Write a functional group of alcohol.
6. How coal is formed?
7. Define functional group.
8. What is the dot & cross formula?
9. Define open-chain/acyclic compound.
10. Define alicyclic/Non-Benzenoid compounds.
11. Define Heterocyclic compounds with an example
12. Define isomerism. How many isomers does pentane have?
Important long questions: (Skip this part. No long question will come from this chapter in 2022)
1. Write a note on the classification of organic compounds.
2. Compare the general characteristics of organic & inorganic compounds.
3. Define homologous series. Write its characteristics.
4. Define functional group. Explain the functional group of alcohols, ethers, aldehydes, ketones, carboxylic acid, esters, etc.
5. Explain the meaning of molecular formula, structural formula, condensed structural formula & electronic formula.
Unit 12
Important Short Questions
1. Define hydrocarbons.
2. Define open-chain hydrocarbons & Closed chain hydrocarbons
3. What are Saturated & unsaturated hydrocarbons?
4. Why alkanes are called “Paraffin”?
5. What is meant by the Hydrogenation of alkenes?
6. Give Uses of ethane & ethane.
Important long questions:
1. Define hydrocarbons. How are they classified?
2. Explain methods for the preparation of alkanes & alkenes.
3. Discuss the physical properties of alkenes & alkynes.
4. Write uses of ethane, ethane, methane & acetylene.
5. Give chemical reactions of alkanes.
Unit 13
Important Short Questions
1. Define Biochemistry.
2. Define Polysaccharides & give their properties
3. write Characteristics of monosaccharides
4. Define amino acids. Give its general formula.
5. Differentiate b/w essential & nonessential amino acids.
6. Write Sources & uses of vitamin A, Vitamin D.
7. Carbohydrates & their uses
8. Difference b/w ghee & oil
9. Function of DNA
10. Types of vitamins
11. How do you justify RNA works as a messenger?
Important long questions:
1. Define monosaccharides & oligosaccharides. Give their characteristics.
2. Give uses and sources of carbohydrates.
3. Define amino acids. Explain how are the building blocks of proteins.
4. Explain the sources & uses of proteins & lipids.
5. Define vitamins. Discuss the types, sources uses & importance of vitamins. Also, write the effects of deficiency of vitamins.
6. What are carbohydrates? How monosaccharides are prepared?
Unit 14
Important Short Questions
1. Atmosphere & its spheres
2. Diff. b/w atmosphere & environment
3. Name the major constituents of the troposphere
4. Define pollutants. Differentiate b/w primary & secondary pollutants.
5. Greenhouse effect
6. Global warming & its effects
7. Why CO2 is called a greenhouse gas?
8. CO2 is responsible for heating up the atmosphere, how?
9. Effects of acid rain
10. Define the Ozone hole & where was it noticed first?
11. Effects of ozone depletion
12. Where the ozone layer is found?
13. How does acid rain increases the acidity of soil?
14. Why CO is considered a health hazard?
15. How sulfur-containing compounds are emitted naturally?
Unit 15
Important Short Questions
1. How does water rise in plants?
2. Four properties of water
3. Define capillary action
4. Why the water molecule is polar?
5. Soft water & hard water
6. How temporary hardness of water can be removed by Clark’s method?
7. Define boiler scales. How are they removed?
8. Why are pesticides & fertilizers used?
9. Why non-polar compounds are insoluble in water?
10. How does the water rise in plants?
11. Disadvantages of detergents.
12. Name some water-borne diseases.
13. Define Fluorosis.
Important Long Questions 1. Causes of hardness in water and methods to remove hardness2. Industrial effluents and their effects3. Effects of water pollution4. Write a note on waterborne diseases
Unit 16
Important Short Questions
1. Define metallurgy.
2. Difference b/w Minerals & Ores.
3. State gravity separation
4. Electromagnetic separation
5. Define Roasting. How is it carried out?
6. Raw materials of Solvey’s process
7. Advantages of Solvey’s process
8. Petroleum
9. Formation of petroleum
10. How roasting is carried out?
11. Difference b/w crude oil & residual oil
12. Difference b/w diesel oil & fuel oil.
13. Which raw materials are used in the manufacturing of urea? 14. How NaHCO3 is converted into Na2CO3?
Important Long Questions1. Electromagnetic separation (Smelting, mesmerization)2. Manufacture of sodium carbonate by Solvay’s process (reactions, advantages)3. Process of manufacture of Urea (3 basic steps)