INTERMEDIATE-I YEAR CHEMISTRY
Model Paper-3
Time: 3hours Maximum marks: 60
SECTION-A 10x2=20M
Note: Answer all questions.
1. Calculate the oxidation state of i) cr in K CrO 2 4 and ii) N in NH NO 4 3 .
2. What is the effect of Temperature on
i.Vapour Pressure ii. Surface Tension.
3. What is the nature of aqueous solution of Na CO 2 3 ? Why?
4. Write the average composition of Portland cement.
5. What is meant by inert pair effect? Give the stable oxidation state of Thallium.
6. What is producer gas? The calorific value of producer gas is lower than that of syn
7. Calculate the Enthalpy change for the complete combustion of 29gm of Butane if
C H O g CO g H O g l + → + ∆ H = -2658KJ
13 ( ) ( ) 4 ( ) 5 ( ),
4 10 2 2 2
8. Define the terms ‘Eutrophication’ and ‘Bioamplification’.
9. Write any two adverse effects caused by acid rain.
10. How is Ethylene is prepared from ethylalcohol? Give equation.
SECTION-B
Note: Answer any Six of the following 6x4m=24 M
11. Deduce a)Boyle’s law and b)Dalton’s law from kinetic gas equation.
12. Balance the following equation by Ion electron method
− − + → +
P OH PH H PO 4 3 2 2
13. State and explainthe Hess’s law of constant heat summation.
14. Explain the differences in propertiesof diamond and graphite on the basis of their
15. State Le -Chatelier principle. Discuss the favourable conditions for the Haber’s
ammonia synthesis by applying Le -Chatelier principle.
16. Write a note on Heavy water.
17. Explain Chain and functional isomerism with one example each.
18. Name the products A,B and C in the following sequence of reactions.
o water Fe c CH Cl AlCl CaC A B C → → → +
3 3 ,500
SECTION -C
NOTE: Answer any three questions. (2X8=16M)
19. What are the basic postulates of VSEPR theory? Discuss the shape of Methane
and Ammonia molecules on the basis of VSEPR theory.
20. State and explain the following with suitable examples.
a) Auf-bau principle b) Pauli’s principle c) Hund’s rule.
21. Define first and second ionization potentials. Why is the second ionization
potential greater than the first ionization potential? Discuss any three factors
affecting IP values of elements
Model Paper-3
Time: 3hours Maximum marks: 60
SECTION-A 10x2=20M
Note: Answer all questions.
1. Calculate the oxidation state of i) cr in K CrO 2 4 and ii) N in NH NO 4 3 .
2. What is the effect of Temperature on
i.Vapour Pressure ii. Surface Tension.
3. What is the nature of aqueous solution of Na CO 2 3 ? Why?
4. Write the average composition of Portland cement.
5. What is meant by inert pair effect? Give the stable oxidation state of Thallium.
6. What is producer gas? The calorific value of producer gas is lower than that of syn
7. Calculate the Enthalpy change for the complete combustion of 29gm of Butane if
C H O g CO g H O g l + → + ∆ H = -2658KJ
13 ( ) ( ) 4 ( ) 5 ( ),
4 10 2 2 2
8. Define the terms ‘Eutrophication’ and ‘Bioamplification’.
9. Write any two adverse effects caused by acid rain.
10. How is Ethylene is prepared from ethylalcohol? Give equation.
SECTION-B
Note: Answer any Six of the following 6x4m=24 M
11. Deduce a)Boyle’s law and b)Dalton’s law from kinetic gas equation.
12. Balance the following equation by Ion electron method
− − + → +
P OH PH H PO 4 3 2 2
13. State and explainthe Hess’s law of constant heat summation.
14. Explain the differences in propertiesof diamond and graphite on the basis of their
15. State Le -Chatelier principle. Discuss the favourable conditions for the Haber’s
ammonia synthesis by applying Le -Chatelier principle.
16. Write a note on Heavy water.
17. Explain Chain and functional isomerism with one example each.
18. Name the products A,B and C in the following sequence of reactions.
o water Fe c CH Cl AlCl CaC A B C → → → +
3 3 ,500
SECTION -C
NOTE: Answer any three questions. (2X8=16M)
19. What are the basic postulates of VSEPR theory? Discuss the shape of Methane
and Ammonia molecules on the basis of VSEPR theory.
20. State and explain the following with suitable examples.
a) Auf-bau principle b) Pauli’s principle c) Hund’s rule.
21. Define first and second ionization potentials. Why is the second ionization
potential greater than the first ionization potential? Discuss any three factors
affecting IP values of elements
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