CBSE Class 10 Science Question Paper 2005 (2)

CBSE Class 10 Science Question Paper 2005 (2). Based on CBSE and CCE guidelines. The students should practice these Question Papers to gain perfection which will help him to get more marks in CBSE examination. Please refer to more CBSE Class 10 question papers in other links. The CBSE Question papers are of past examinations. Its always recommended by CBSE to practice the papers released by CBSE to get better exams in CBSE exams. CBSE Last Year Question Papers for class 10 for final/ term/ SA1/ SA2 Examinations conducted by Central Board of Secondary Education for all CBSE affiliated schools in India and abroad.

SCIENCE AND TECHNOLOGY (Theory)

General Instructions :

(i) The question paper comprises of two sections, A and B. You are to attempt both the sections.

(ii) The candidates are advised to attempt all the questions of Section A separately and Section B separately.

(iii) All questions are compulsory

(iv) There is no overall choice. However, internal choice has been provided in some questions. You are to attempt only one option in such questions.

(v) Marks allocated to every question are indicated against it.

(vi) Question numbers 1-5 in Section A and 21-23 in Section B are very short answer questions. These are to be answered in one word or one sentence.

(vii) Question numbers 6-10 in Section A and 24-25 in Section B are short answer questions. These are to be answered in 30-40 words each.

(viii) Question numbers 11-17 in Section A and 26-29 in Section B are also short answer questions. These are to be answered in 40-50 words each.

(ix) Question numbers 18-20 in Section A and 30 in Section B are long answer questions. These are to be answered in 70 words each.

SECTION - A

1. Give an example of photochemical reactions. 

2. Name a metal which offers higher resistance to the passage of electricity than copper. 

3. State a reaction in which SO2 acts as an oxidising agent. 

4. Where will the image be formed by concave mirror when an object is placed between the pole and the focus point of the mirror ?

5. Which has a higher resistance : a 50 W lamp bulb or a 25 W lamp bulb and how many times 

6. How is plaster of Paris chemically different from gypsum ? How may they be interconverted ? Write one use of plaster of Paris. 

7. Allotropy is a property shown by which class of substances, elements, compounds or mixtures ? Give one example of allotropy.

8. Draw diagrams to distinguish between 'equatorial orbit' and 'polar orbit' of artificial satellites of earth. 

9. With respect to air the refractive indices of water and benzene are 1.33 and 1.50 respectively. Calculate the refractive index of benzene with respect to water. 

Please refer to attached file for CBSE Class 10 Science Question Paper 2005 (2)