Sample Paper

Topics: Refraction, Nuclear fission, Chemical reaction Pages: 3 (838 words) Published: August 22, 2013
Sample Paper – 2011 Class – X Subject – Science

Time: 2 ½ Hrs
General Instructions: I) ii) iii) iv)

Maximum Marks: 60

The question paper comprises of two sections A and B. You are to attempt both the sections. The candidates are advised to attempt all the questions of Section A separately and Section B separately. All questions are compulsory. There is no overall choice. However, internal choice has been provided in two questions of five marks category in Section A and one question of 2 marks category and one question of 3 marks category in Section B. You are to attempt only one option in such questions.

v) vi)

Marks allocated to each question are indicated against it. Questions 1 to 6 in Section A and 17 to19 in Section B are very short answer questions. These are to be answered in one word or one sentence only.

vii)

Questions 7 to 10 in Section A and 20 to24 in Section B are short answer questions. These are to be answered in about 30 - 40 words each.

viii)

Questions 11 to 14 in Section A and 25 to 26 in Section B are also short answer questions. These are to be answered in about 40 - 50 words each.

ix)

Questions 15, 16 in Section A and 27 in Section B are long answer questions. These are to be answered in about 70 words each.

Section- A 1. 2. 3. 4. 5. 6. 7. 8. 9. Write the product formed when Ferrous Sulphate is heated? What is the relationship between angle of Incidence & angle of Reflection? What will happen if the solution Hydrogen Carbonate is heated? Give the equation of the reaction involved? How can Presbyopia be corrected? What is the Composition of Aqua regia? Why are copper wire used as connecting wire? An element X on burring in air form an oxide Xo 2 which when dissolved in water turns blue litmus red. Identify if X is a metal or non – metal Justify your answer? What is the cause of resistance offered by a conductor? How is graphite used in lead Pencils

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