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Recent questions tagged class 10
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Name the reproductive and non-productive parts of Rhizopus.
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Nov 11, 2023
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Priya
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Salts are formed by the neutralisation reaction between an acid and a base. Complete the following table by filling
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Nov 11, 2023
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Assertion (A): All kitchen waste cannot form compost. Reason (R): Material like milk packets may not be biodegradable.
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Nov 11, 2023
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Assertion (A): One circuit with 15 A current rating is used for appliances such as geysers and air coolers.
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Nov 11, 2023
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Assertion (A): A lot of difference in the concentrations of ions was observed by a scientist between the fluid in xylem
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Nov 10, 2023
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Assertion (A): Copper ions migrate from the anode to the cathode during electrorefining of copper.
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Nov 10, 2023
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class 10
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The chemicals that are non-degradable, get progressively accumulated at each trophic level, and their concentration is
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If all the organisms of one trophic level in a food chain die, what would be its impact on the population of organisms
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Nov 10, 2023
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For a convex mirror the image distance (v) = 5 cm, focal length (f) = 10 cm and height of the image (h) = 7.5 cm.
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Nov 10, 2023
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The light enters from air to glass having refractive index 1.5. The speed of light in glass is
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During exhalation, the exchange of gases takes place between
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Nov 9, 2023
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A cross between pure tall and pure short pea plants gives hybrid tall pea plants in the first generation.
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Nov 9, 2023
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Gastric juice is secreted by gastric glands and contains hydrochloric acid, mucus, and pepsin.
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Nov 9, 2023
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Which of the following tests is given by the gas ‘X’ produced in the set up shown? (a) Lime water turns milky white
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Nov 9, 2023
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Which of the following structures correctly represent the electron dot structure of a Nitrogen molecule?
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Nov 9, 2023
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class 10
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Which of the following correctly represents ‘X’ in the above chemical changes? (a) Ethane (b) Ethene (c) Ethyne
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Nov 9, 2023
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class 10
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540
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The metal X does not react with cold water but floats on hot water with formation of colourless bubbles.
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Nov 9, 2023
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31.5k
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class 10
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210
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Washing soda is hydrated a) Sodium hydrogen carbonate b) Sodium carbonate
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Nov 9, 2023
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class 10
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The ratio (x:y) of reactants Fe and H2O in the given balanced chemical equation is xFe(s) + yH2O(g) → Fe3O4 (s)
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Nov 9, 2023
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class 10
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Which of the following observations is correct for the above given experimental diagram?
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Nov 9, 2023
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class 10
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