PYQ Vault

Day 69: CBSE Class 10 Science

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

  1. Question 1

    Control and Coordination. This type asked 2 times: 2023, 2025. This one: 2025

    8
    Electrical impulse travels in a neuron from

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  2. Question 2

    Electricity. This type asked 2 times: 2024, 2025. This one: 2025

    27
    (a) Define one volt potential difference between two points in an electric field. (b) Draw a schematic diagram of an electric circuit of a cell of 1⋅51{\cdot}5 V, 5 Ω5\,\Omega and 10 Ω10\,\Omega resistor and a plug key, all connected in series. Calculate the current drawn from the cell when the key is closed.
  3. Question 3

    Heredity. This type asked 2 times: 2024, 2025. This one: 2025

    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) : In reptiles, the temperature at which the fertilized eggs are kept decides the sex of the offsprings. Reason (R) : Sex is not genetically determined in some animals.

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  4. Question 4

    How do Organisms Reproduce?. This type asked 2 times: 2024, 2025. This one: 2025

    10
    The number of chromosomes in a cell division is halved. This kind of cell division is observed in :

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  5. Question 5

    How do Organisms Reproduce?. This type asked 2 times: 2024, 2025. This one: 2025

    10
    The correct/true statement(s) for a bisexual flower is/are : (i) They possess both stamen and pistil. (ii) They possess either stamen or pistil. (iii) They exhibit either self-pollination or cross-pollination. (iv) They cannot produce fruits on their own.

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