PYQ Vault

Day 142: CBSE Class 10 Science

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

  1. Question 1

    Life Processes. Asked once: 2025 (same type asked 2 times)

    23 (b)
    (i) The transport system in plants is relatively slower than in animals. Give reasons. (ii) State the role of phloem in the transport of materials in plants.

  2. Question 2

    Light — Reflection and Refraction. Asked once: 2025 (same type asked 2 times)

    13
    In order to obtain large images of the teeth of patients, the dentist holds the concave mirror in such a manner that the teeth are positioned

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  3. Question 3

    Magnetic Effects of Electric Current. Asked once: 2023 (same type asked 2 times)

    14
    In domestic electric circuits the wiring with 15 A current rating is for the electric devices which have

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  4. Question 4

    Metals and Non-metals. Asked once: 2024 (same type asked 2 times)

    27 (a)
    Name the chemical reaction that occurs between iron (III) oxide and aluminium metal. Write its balanced chemical equation. Why is this reaction called displacement reaction ? Give one use of this reaction.

  5. Question 5

    The Human Eye and the Colourful World. Asked once: 2023 (same type asked 2 times)

    Two statements are given, one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer from the options given below.
    19
    Assertion (A) : The angle through which a ray of light bends on passing through a prism is called the angle of deviation. Reason (R) : The peculiar shape of a prism makes the emergent ray bend at an angle to the direction of the incident ray.

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