DISTRICT COMMON EXAMINATION BOARD – KADAPA – YSR Dist. Action Plan Model Question Paper 2019-2020 PHYSICAL SCIENCE (English Medium) Class: 10 Max.Marks: 50 Time: 2.45 Hrs Instructions: 1. There are four sections and 33 questions in the paper 2. Answers should be written in a given answer booklet. 3. There is internal choice in Section – IV only. 4. Write all the questions visible & legibly. 5. 15 minutes are given for reading the question paper and 2.30 hours given for answering Section - Ⅰ Note: 1. Answer all the Questions. 12 X ½ = 6 2. Each Question carries ½ Mark 1. What is the effective resistance when 2Ω, 3Ω and 4Ω resistors are connected in series? 2. Coating of Zinc metal over Iron is called__________ 3. Which metal is formed in molten state in Thermite Process? 4. LED is a non – Ohmic conductor. State True or False? 5. Write the IUPAC name of 6. 1 KWH = _____ Joules. 7. Which of the following hydrocarbon exhibit Isomerism? A) CH4 B) C2H6 C) C3H8 D) C4H10 8. What do you call the impurities present in a ore? 9. What is the S.I unit of Specific resistance? 10. P: Electric motor converts Electrical energy into Mechanical Energy. Q: The direction of rotation of Armature is always in one direction in motor. i) P, Q Both are correct ii) P is correct but Q is not correct iii) P is not correct, Q is correct iv) P, Q both are not correct. 11. Match the following Group- A Group-B 1. CH4 P) SP 2 Hybridisation 2. C2H4 Q) SP 4 Hybridisation 3. C2H2 R) SP Hybridisation S) SP 3 Hybridisation A. 1-S, 2-Q, 3-R B. 1-R, 2-P, 3-S C. 1-Q, 2-P, 3-R D. 1-S, 2-P, 3-R 12. For which process of metal extraction, Blast Furnace is used? 06-01-2020 Day-27 19E www.dcebkadapa.in ?
Transcript
DISTRICT COMMON EXAMINATION BOARD – KADAPA – YSR Dist.
Action Plan Model Question Paper 2019-2020
PHYSICAL SCIENCE (English Medium)
Class: 10 Max.Marks: 50 Time: 2.45 Hrs
Instructions: 1. There are four sections and 33 questions in the paper
2. Answers should be written in a given answer booklet. 3. There is internal choice in Section – IV only. 4. Write all the questions visible & legibly. 5. 15 minutes are given for reading the question paper and 2.30 hours given for answering
Section - Ⅰ Note: 1. Answer all the Questions. 12 X ½ = 6
2. Each Question carries ½ Mark
1. What is the effective resistance when 2Ω, 3Ω and 4Ω resistors are connected in series?
2. Coating of Zinc metal over Iron is called__________ 3. Which metal is formed in molten state in Thermite Process?
4. LED is a non – Ohmic conductor. State True or False?
5.
Write the IUPAC name of
6. 1 KWH = _____ Joules.
7. Which of the following hydrocarbon exhibit Isomerism?
A) CH4 B) C2H6 C) C3H8 D) C4H10
8. What do you call the impurities present in a ore?
9. What is the S.I unit of Specific resistance?
10. P: Electric motor converts Electrical energy into Mechanical Energy. Q: The direction of rotation of Armature is always in one direction in motor.
i) P, Q Both are correct ii) P is correct but Q is not correct iii) P is not correct, Q is correct iv) P, Q both are not correct.
11. Match the following Group- A Group-B
1. CH4 P) SP2 Hybridisation
2. C2H4 Q) SP4 Hybridisation
3. C2H2 R) SP Hybridisation
S) SP3 Hybridisation
A. 1-S, 2-Q, 3-R B. 1-R, 2-P, 3-S C. 1-Q, 2-P, 3-R D. 1-S, 2-P, 3-R
12. For which process of metal extraction, Blast Furnace is used?
06-01-2020
Day-27
19E
www.dcebkadapa.in
?
Section - Ⅱ
Note: 1. Answer all the Questions. 8 X1 = 8
2. Each Question carries 1 Mark.
13. What is the use of Fuse in our houses?
14. What is Hydrocarbon? Give an example?
15. Define Alloy?
16. Why Tungsten is used as Filament in electric bulb?
17.What is Magnetic Flux? Write its S.I unit?
18. Draw the shape of “Micelle”?
19. Write any two examples of highly reactive metals?
20. Write any two uses of Esters?
Section - Ⅲ Note: 1. Answer all the Questions. 8X 2=16
2. Each Question carries 2 Marks
21. Write any two uses of Carbon Compounds?
22. Are Magnetic lines of force closed loops? Example?
23. Write the applications of Faraday’s law in daily life?
24. Predict the type of reactions (addition / substitution) that C2H4 and C2H6 participate?
Write the reason for your prediction?
25. Write any one daily life example for each of series and parallel connection?
26. What is electric shock? Explain?
27. Write an example of esterification reaction? 28. Write the apparatus required for the experiment to show
“air and water are needed for Metal corrosion”?
Section - Ⅳ 5X 4=20
Note: 1. Answer all the Questions. 2. Each Question has internal choice 3. Each Question carries 4 marks.
29. Abhilash said to Mahesh “EMF and Potential difference both are same”. Do you support him or Not? Explain. Why?
(Or) Deduce the expression for effective resistance when three resistors are connected in parallel? 30. Froth Floatation process is used in concentration of which type of Ore? Explain?
(Or) Explain substitution reactions of Alkanes?
31. Explain the experiment which shows 𝑉
𝐼 is constant?
(Or) Define Faraday’s law and Explain it with an activity?
32. Fill the following table.
(Or)
Observe the above compounds and answer the following questions.
i) Which compound has general formula R−COOR?
ii) Which of the above molecules does not contain a functional group?
iii) Identify ketone in the above compounds?
iv) Identify Ethyl Methyl Ether?
33. Which device converts electrical energy in to mechanical energy?
Draw a neat diagram of it and label its parts?
(Or) Give an example of molecule having SP hybridisation? Draw a neat diagram of it?
Prepared by B. Gangadhar SA- PS, ZPHS- Chinnamachu palli, Chennuru (M) 9963062585
