AP SSC 10th class General Science Model paper 2015-16 English Medium Set 9

AP SSC 10th class General Science Model paper 2015-16 English Medium Set 9

Section I

Group – A 1.Write the differences between evaporation and boiling ? 2.Do you know the reason for appearance the red colour of sun during sunrise and at sunset ? 3.What are the conditions for total internal reflection ? 4.The value of magnetic field induction which is uniform is 2T. What is the flux passing through a surface area 1.5 m² perpendicular to the field ?

Group – B 5.Write the importance of pH in our digestive system ? 6.How does metallic character change when we move . a) down a group ? b) across a period ? 7.Write down the characteristics of the element having atomic number 7 ? a) Period number b) Group number c) Element family ‘ d) of valency electrons 8. Appreciate the roll of catenation in the versatile nature of carbon ?

Section II

9. Why do we get dew on the surface of a cold soft drink bottle kept in open air ? 10. What is the I₂ value in the given circuit ? 11. Are the magnetic field lines closed ? Explain. 12. Give four examples of salts of chloride family ? 13. Fresh milk has a pH of 6. What happens to pH if it turns to curd ? Give reason. 14. How do you appreciate the markings (writings) of a pencil on a paper ?

Section III

Group A

15. Answer these a) How much energy is transferred when 1 gm. of boiling water at 100°C condenses to water at 100°C ? b) How much energy is transferred when 1 gm. of boiling water at 100°C cools to water at 0° ? c) How much energy is released or absorbed when 1 gm of water at 0°C freezes to ice at 0°C ? d) How much energy is released or absorbed when 1 gm. of steam at 100°C turns to ice at 0°C ? 16. A double covex lens nas two surfaces of equal radii ‘R’ and refractive index n = 1.5. Find the focal length ? . 17. How does a battery work ? Explain. 18. How do you appreciate Faraday’s Law which is the consequence of conservation of energy ?

Group B 19. Explain the rules to be followed for writing the electronic configuration of element having more than one electron ? 20. A chemical compound has the following Lewis notation.

1. How many valence electrons done element ‘Y’ have ?
2. What is the valency of element ‘Y’ ?
3. What is the valency of element ‘X’ ?
4. How many covalent bonds are there in the molecule ?
5. Suggest a name for the elements X and Y.

21. Explain the methods in the purification of the crude metal ? 22. Write short notes on each of the following a) Nanotubes b) Graphene

Section IV

23. Draw a ray diagrams for the correction of Myopia and Hypermetropia ? 24. Draw a neat diagram of electrolysis of water and label the parts.