Which of the following statements contradict each other? A. All ducks are…

2025

Which of the following statements contradict each other?

A. All ducks are birds.

B. Some ducks are birds.

C. Some ducks are not birds.

D. No ducks are birds.

Choose the most appropriate answer from the options given below:

  1. A.

    A and C Only

  2. B.

    B and C Only

  3. C.

    B and D Only

  4. D.

    C and D Only

Attempted by 5 students.

Show answer & explanation

Correct answer: A

Statements A (All ducks are birds) and C (Some ducks are not birds) contradict each other. In categorical logic, the Universal Affirmative and Particular Negative are contradictories in the Square of Opposition. They cannot both be true or false simultaneously.

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