10th General Science Model Paper

Telangana State SSC Public Examination – 2016 General Science Paper – I Model Paper.

Section – I:
i) Answer all the questions.
ii) Each question carries 1 mark.
iii) Answer each question in 1 to 2 sentences. 7 × 1 = 7 M

1. What is the reason for using Tungsten as a filament in an electric bulb?
2. Which principle is used in laws of reflection?
3. A prism produces an angle of minimum deviation 30°. If its angle is 60°, find the refractive index of the material of the prism.
4. What is the functional group present in CH3COOH? How do you test that group?
5. Why is it difficult to remove an electron from Mg+ ion compared to neutral Mg atom?
6. What remedy do you suggest when your friend is suffering from acidity?
7. ‘X’ is an element that belongs to ‘3rd’ period and 13th group, then answer the following.
1) Write the electronic configuration of X.
2) What is the valency of X?

Section – II:
i) Answer all the questions.
ii) Each question carries 2 marks.
iii) Answer each question in 4 to 5 sentences. 6 × 2 = 12

8. Mention one experiment to understand Faraday’s Law. What are the required apparatus for this experiment?
9. Janaki observed that light is travelling from water to crown glass. The refractive indices of these two are given below. Water: n = 1.33, Crown glass: n = 1.52 Now answer the following:
a) Which is the denser medium and which is the rarer medium?
b) What happens when light travels from Crown glass to water?
10. Padma wears a spectacle. Her eyes began seem to be bigger in size.
a) What lens is there in her spectacle?
b) Which type of eye defect is she having?
Draw the ray diagram for this defect.
11. Substance ‘A’ turns blue litmus into red. Substance ‘B’ turns red litmus into blue. If the reaction takes place between A and B, guess what are the substances to be formed?
12. A student dropped a metal into a test tube containing ethyl alcohol and observed a gas is coming out. What gas is released and how could he identify it?
13. How do you appreciate the role of Buck minister p fullerin medicine?

Section – III:
i) Answer all the questions.
ii) Each question carries 4 marks. iii) There is internal choice for each question.
Only one option from each question is to be attempted.
iv) Answer each question in 8 to 10 sentences. 4 × 4 = 16

14. A) An electric circuit is shown in the figure.
‘i’ is the current entering into the circuit at A.
a) What is the potential difference between C and D?
b) What is the resultant resistance between A and B?
(OR)
B) a) What is specific heat?
b) Which utensil is better to cooking? Aluminium or Copper?
c) Specific heat of Copper is 0.095 Cal/g°C. How can you find the specific heat of Aluminium.

15. A) The value of focal length are not mentioned on the concave mirrors given to you. What apparatus do you need to find their focal length experimentally? How do you find their focal lengths?
OR
B) A convex lens is given to you. How do you find its focal length? What happens to its focal length when it is placed in water? How do you justify your answer?

16. A) 1s2 2s2 2p6 3s1 and 1s2 2s2 2p4 are the electronic configurations of X and Y atoms respectively. Answer the following.
a) Which atom can form Cation?
b) Which atom can form Anion?
c) To which block in the periodic table do these elements belong?
d) Write the formula of the molecule formed by the atom of the elements X and Y.
(OR)
B) We use a detergent to clean clothes with water. How does the detergent remove dirt in clothes? Explain.

17. A) We see many combustion and oxidation reactions in our daily life. Among these every combustion reaction is an oxidation reaction. It does not mean that all oxidation reactions are combustion reactions. Do you support this statement? Give reasons for your answer.
(OR)
B) A milk man added a small amount of backing soda to milk. Now answer the following questions.
a) Why should he add backing soda to milk?
b) Is the milk going to settle as curd? If so when?
c) In what way backing soda is useful to add in the milk?
d) What is the nature of the fresh milk? Is it basic or acidic?

Section – IV:
Instructions:
i) Answer all the questions.
ii) Each question has four choices. Choose the correct answer for each question and write the relevant alphabet (A/B/C/D) against the question number in your answer booklet.
iii) Each question carries 1/2 mark.

18. 1 Cal = …….. Joules.
A) 42 B) 420 C) 4.18 D) 41.8
19. Speed of Light = ……
A) 3 × 108 m.s−1 B) 3 × 1010 m.s−1
C) 3 × 108 cm.s−1 D) 30 × 1010 cm.s−1
20. A coil is suspended from the ceiling as shown in the figure. A bar
magnet is moving towards the coil, then which of the following
is not correct?
A) With respect to the bar magnet the direction of current in the coil is anti clockwise.
B) The field due to coil is opposite to the field due to bar magnet.
C) The current generated in the coil depends on the velocity of the bar magnet
D) The e.m.f. generated in the coil depends on the resistance of the coil.
21. Which converts electrical energy into mechanical energy?
A) Motor B) Battery C) Generator D) Switch
22. Joule/ Coulomb is the same as ….
A) 1 Watt B) 1 Volt C) 1 Ampere D) 1 Ohm
23. If a base dissolves in water by what name is it better known?
A) Neutralization B) Basic C) Acid D) Alkali
24. Shape of S-orbital…?
A) Linear B) Dumbbell C) Double dumbbell D) Spherical
25. Which of the following is the most active metal?
A) Lithium B) Sodium C) Potassium D) Rubidium
26. Galena is an ore of …..
A) Zn B) Pb C) Hg D) Al
27. Which one of the following hydrocarbon can show isomerism?
A) C2H4 B) C2H6 C) C3H8 D) C4H10

Answers for Section – IV : 18-C 19-A 20-A 21-A 22-B 23-D 24-D 25-D 26-B 27-D.

General Science (Paper-1) S.S.C Public Examination – 2016 Model Paper (Important Questions):

1. Padma wears a spectacle. Her eyes began seem to be bigger in size.
a) What lens is there in her spectacles?
b) Which type of eye defect is she having?
Draw the ray diagram for this defect.
2. Raghava wants to know the wavelengths and the corresponding frequencies of primary colours. Collect the information and give it to him.
3. What role does specific heat play in keeping a watermelon cool for a long time after removing it from a fridge on a hot day?
4. How do you appreciate the role of the Buckminister fullerence in medicine?
5. In an atom the number of electrons in Mshell is equal to the number of electrons in the K and L shell. What is the atomic number of that element? Write its electronic configuration.
6. Using the periodic table, predict the formula of a compound formed between an element ‘x’ of group 13 and another element ‘y’ of
group 16.
7. What is thermite process? Mention its applications in daily life.
8. A bar magnet with north pole facing towards a coil moves as shown in figure. What happens to the magnetic flux passing through
the coil.
9. What is value of 1 KWH in Joules?
10. A Prism produces an angle of minimum deviation 30°. If its angle is 60°, find the refractive index of the material of the prism.
11. Why is it difficult to remove an electron from Mg+ ion compared to neutral Mg atom?
12. Name the acid present in vinegar.
13. What is the difference between roasting and calcination?
14. How do you verify the laws of reflection of light with an experiment?
15. Deduce an expression for the equivalent resistance of three resistors connected in parallel.
16. How do you appreciate the working of ciliary muscles in the eye?
17. Krishna is unable to identify the differences between evaporation and boiling. The teacher clarified the differences by asking some questions to Krishna. What are the questions asked by the teacher?
18. Write an equation for decomposition reaction where energy is supplied in the form of heat / light / electricity.
19. a) State and explain Pauli exclusion princple. According to this principle how many electrons can occupy an orbital?
b) State and explain Hund’s rule with an example.
20. Explain the formation of a) Ammonia molecule and b) Shape of water molecule keeping in view valence bond theory.
21. Describe the preparation and properties of ethanol.
22. Draw a neat diagram of electric motor and label the parts.
23. Draw a neat diagram of blast furnace and name the parts.

I. Write the capital letter showing the correct answer for the following questions in the brackets provided against them. 20 x 1/2 = 10
1. If the critical angle is 45°, then the refractive index of the medium is ……
A) 1.45 B) 2.414 C) 1.414 D) 1.5
2. The size of the object as perceived by an eye depends primarily on ……
A) Actual size of the object
B) Distance of the object from the eye
C) Aperture of the pupil
D) Size of the image on the retina
3. Flush bags containing potato chips will be filled with …… gas.
A) CO2 B) O2 C) N2 D) Cl2
4. Ice melts at …… K
A) 273 B) 373 C) 173 D) 473
5. The process involved in formation of water droplets outside a cold bottle is ……
A) Evaporation B) Sublimation C) Freezing D) Condensation
6. A bulb is rated 40 W, 120 V and another bulb is rated 60 W, 120 V. Which has more resistance?
A) First bulb B) Both bulbs C) Second bulb D) None of these
7. This compound is used in many cough syrups …….
A) Ethene B) Ethanal C) Ethane D) Ethanol
8. Which device converts mechanical energy to electrical energy?
A) Motor B) Battery C) Generator D) Inverter
9. Latent heat of vapourization of water is ……
A) 540 cal/gm B) 80 cal/gm C) 100 cal/gm D) 373 cal/gm
10. The SI unit of power is …..
A) Ohm B) Watt C) Ampere D) Volt
11. The maximum value of ‘l’ for n = 5 is ……
A) 1 B) 3 C) 2 D) 4
12. Saturated hydrocarbons participate in …… reactions.
A) addition B) substitution C) displacement D) combination
13. This is an olfactory indicator …..
A) onion B) methyl orange C) litmus D) phenolphthelin
14. The pH scale was invented by ……
A) Boyle B) Powell C) Sornesnsen D) Nyholm
15. Organic compound produced by wholer is…
A) Amide B) Phenol C) Aldehyde D) Urea
18. The noble element which is an exception for octet rule ……
A) Argon B) Helium C) Kryfton D) Radon
17. This is oxidation ……
A) Rusting of iron B) Respiration C) Rancidity D) All the above

Answers : 1-C 2-B 3-D. 4-A 5-D 6-A 19-C 8-C 9-A 10-B 11-D 12-B 13-A 14-C 15-D 18-B 17-D.

II. Fill in the Blanks : 5 x 1/2 = 2 1/2
21. Plaster of paris is also called ……
22. …… bond cannot exist independently.
23. ….. scales are used to measure electronegative values.
24. The refractive index of rock salt is ……
25. The specific heat of water is …… cal/gm °C
Answers : 21. Calcium sulphate hemihydrate, 22. Π, 23. Pauling and Millikan, 24. 1.54, 25.1

III. Match the following :
Group A Group B
26. Archimedes ( ) A) Quantum theory
27. Planck ( ) B) Electromagnetism
28. Dobereiner ( ) C) Shapes of molecules
29. Oersted ( ) D) Burning of Ships
30. C.V. Raman ( ) E) Triads
Answers : 26-D 27-A 28-E 29-B 30-C

TS SSC Public Examination – 2016 General Science Paper-I Model Paper

SSC General Science – Paper 1Model Questions 2016