PYQ Vault

Day 112: CBSE Class 10 Science

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

  1. Question 1

    Control and Coordination. Asked once: 2024 (same type asked 4 times)

    21 (B)
    Name one directional growth movement each in response to chemicals and water in plants. Write an example for each of them.

  2. Question 2

    Control and Coordination. Asked once: 2024 (same type asked 4 times)

    23 (B)
    There is a hormone which regulates carbohydrate, protein and fat metabolism in our body. Name the hormone and the gland which secretes it. Why is it important for us to have iodised salt in our diet?

  3. Question 3

    Control and Coordination. Asked once: 2025 (same type asked 4 times)

    7
    The part of the brain which maintains the posture and balance of the body is :

    Tap an option to check your answer.

  4. Question 4

    Control and Coordination. Asked once: 2024 (same type asked 4 times)

    7
    The correct sequence of events when someone’s hand touches a hot object unconsciously :

    Tap an option to check your answer.

  5. Question 5

    Electricity. Asked once: 2026 (same type asked 4 times)

    37
    (a) State Ohm’s law and justify that V−IV - I graph for Ohm’s law will always be a straight line passing through the origin. (b) The figure shows V−IV - I graphs for two identical wires A and B having the same length and area of cross-section, but made of different materials. Which of these wires will be more suitable for making the heating element of an electric heater and why ?