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.