Day 196: CBSE Class 10 Science

5 questions. Try each one first, then open its answer.

Question 1
Metals and Non-metals. Asked once: 2025 (same type asked 4 times)
2 $A metal, M, displaces iron from aqueous solution of ferrous sulphate but fails to do so in case of aqueous solution of aluminium sulphate. The metal M is$
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Question 2
Our Environment. Asked once: 2025 (same type asked 4 times)
25 $Study the food web given below : (a) Identify the food chain(s) in which the eagle receives the highest energy from the producers. (b) Identify the organism in which a non-biodegradable pesticide will be found in maximum concentration. Name the term used for this phenomenon.$
Question 3
Our Environment. Asked once: 2024 (same type asked 4 times)
15 $Identify the food chain in which the organisms of the second trophic level are missing :$
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Question 4
Our Environment. Asked once: 2025 (same type asked 4 times)
16 $The incorrect statement about ozone is$
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Question 5
The Human Eye and the Colourful World. Asked once: 2024 (same type asked 4 times)
14 $In bifocal lenses used for the correction of presbyopia :$
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Question 1