2nd Year Chemistry Guess Paper 2023 For All Punjab Boards
Chemistry is a branch of science that examines chemicals, including its composition, structure, properties, and changes. No one can deny the importance of chemistry in our practical life. There are there science subjects at matric and inter level, chemistry is one of them. The bright students get excellent marks in chemistry because they think it is a very easy subject for them. But average students seek very important subjective and objective questions to get passing Marks.
Here we are sharing the 2nd Year Chemistry Guess Paper 2023 for those students who have not prepared accurately due to some reasons. This 2nd Year Chemistry Guess Paper 2023 will also help you to get minimum passing marks in the chemistry paper. This 2nd Year Chemistry Guess Paper 2023 is prepared by some experienced teachers of chemistry.
2nd Year Chemistry Guess Paper 2023
Important long questions
1. Discuss the preparation of sodium hydroxide on a commercial scale by diaphragm cell or Nelson’s cell.
2. Describe the process of sodium metal manufacturing by Down’s cell.
3. Complete and balance the following equations
i. Li2O + H2O ii. Na2O + H2O iii. Mg + (OH)2 iv. NaNO3
Chapter 3
Important short questions
1. Write four uses of Borax.
2. What is the borax bread test?
3. How is Borax used as water softening agent?
4. Why are borate glazes preferred over silicate glazes?
5. Give any four uses of aluminum in our daily life
6. Give two similarities between carbon and silicate.
7. Give reaction of P2O5 with cold and hot water
8. The aqueous solution of borax is alkaline. Give reason.
9. What is carbonization?
10. Explain the structure of CO2.
11. Write two uses of sodium silicate. (2)
12. How can borax be prepared from Colemanite? Give equation
13. Write names and formulas of oxyacids of nitrogen.
Important long questions
1. Write a note on aluminum silicate.
2. Write a method for the preparation of water glass. Also, write uses of water glass.
3. How will you convert boric acid into borax and vice versa.
Chapter 6
Important short questions
1. All exercise short questions.
Important long questions
1. Write a note : i) Binding energy ii) Paramagnetism.
2. Explain the following properties for the transition element. I) Paramagnetic ii) Colour
Chapter 7
Important Short Questions
1. What is meant by organic chemistry?
2. What are homocyclic and heterocyclic compounds? Give examples.
3. Why is ethene an important industrial element?
4. Define isomers. Write the names of its four types.
5. What is meant by a functional group? Name typical functional groups containing oxygen.
6. Define thermal cracking and steam cracking…
