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Question

Which one of the following is considered as a compound?

This question was previously asked in
CDS 2 2025 Maths Question Paper (14-Sep-2025)
The correct answer is

Calcium carbonate

Explanation: **Calcium carbonate (CaCO₃)** is a **compound** made of calcium, carbon, and oxygen atoms chemically combined.

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Similar Questions

  1. The enzymes which catalyze the same reaction but have different amino acid compositions are commonly referred to as:

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Important Questions from Mixtures and Compounds

  1. The enzymes which catalyze the same reaction but have different amino acid compositions are commonly referred to as:

  2. Consider the following statements :
    I. A colloid and a suspension are heterogeneous mixtures.
    II. Colloids can be separated from the mixture by the process of centrifugation.
    III. Particles of colloids and suspensions can be seen by naked eye.
    IV. The aqueous solution of copper sulphate does not show Tyndall effect; however, the mixture of milk and water shows Tyndall effect.
    Which of the statements given above is/are correct?
  3. Which one among the following separation techniques is used for blood tests in diagnostic laboratories?
  4. Rutherford’s α-particle scattering experiment on gold foil is responsible for the discovery of:

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