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i-Tutor Subjective Test-6A Science (Class X)

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M.M. : 25 i-Tutor Subjective Test-6 Time : 45 Min. Hybrid Classroom Course

Science (Class X)

1. What is dispersion of white light? [1]

2. Which of the following gases is obtained at anode during the electrolysis of brine? [1]

(1) Hydrogen gas

(2) Oxygen gas

(3) Chlorine gas

(4) Nitrogen gas

3. How are desert plants differ from other plants regarding the steps of events occur during photosynthesis? [1]

4. How will you use two identical prism so that a narrow beam of white light incident on one prism emerges out of the second prism as white light? Draw the ray diagram. [3]

5. What is the difference between acidic salts and basic salts? Give example. [3]

6. How is bleaching powder prepared? (Also write the chemical equation). Write any two uses of bleaching powder. [3]

7. (i) List any two functions of lymph. [1]

(ii) Give an account about the fate of energy released during cellular respiration. [2]

8. (a) How does refraction takes place in atmosphere? Why do stars twinkle but not the planets? [3]

(b) A beam of white light falling on the glass prism gets split up into seven coloured marked 1 to 7 as shown in the diagram. What are the colour no. 3 and 5? [2]

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Code A Date : 11-10-2020

Topics Covered :

Physics : Human Eye & The Colourful World (Refraction Through Prism Atmospheric Refraction, Scattering of Light & Total Internal Reflection, Assignment Discussion (Numericals Based on Refraction Through Prism & TIR))

Chemistry : Acids, Bases and Salts (Bases, Properties and Uses of Cases and Dilution, Indicators & pH Value, Nomenclature, Classification and Preparation of Salts, Properties and Uses of Some Important Salts, Water of Crystallization & Some Important Salts, Advanced Lecture)

Biology : Life Processes (Complete Chapter)

Phase-III (HYBRID)

Science (Class X) i-Tutor Subjective Test-6A

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9. (i) (a) What is the advantage of having four chambers in human heart? [1]

(b) Name the chambers of human heart which carries carbon dioxide-rich blood. [1]

(c) From which blood vessels, carbon dioxide-rich blood and oxygen-rich blood come to the heart? [1]

(ii) Regarding intake of food, what is the difference between Amoeba and Paramecium?

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Edition: 2020-21