UGC NET Questions (Paper – 1)

The wrong statement is D only. A, B, C, E and F are correct. D is false because a true conclusion can be reached via an invalid (fallacious) argument. F is correct because validity is a matter of logical form (truth-preservation across possible cases), not the actual truth or falsity of the premises in the real world.

Option A:
Option A is correct because it identifies D alone as wrong and correctly treats F as a true description of validity being form-based. This matches standard textbook definitions used in UGC NET reasoning.

Option B:
Option B is incorrect because it marks F as wrong, but F correctly states that validity depends on form, not on the actual truth/falsity of premises. So “F only” cannot be right.

Option C:
Option C is incorrect because it wrongly includes C as a wrong statement, even though C is the standard definition of soundness (valid + true premises). It also includes F, which is correct.

Option D:
Option D is incorrect because it includes F among the wrong statements. Since F is correct, the set “D and F only” is not the right answer.

Statements A, B, C and D correctly distinguish truth from validity and define soundness. E is false because a true conclusion can result from invalid reasoning. Therefore A, B, C and D are the correct statements.

Option A:
Option A is incomplete because it omits D, the definition of soundness (validity + true premises).

Option B:
Option B is incorrect because it includes E, which is false, and it also omits D, which is true.

Option C:
Option C is incorrect because it omits A, which is true (validity does not require true premises).

Option D:
Option D is correct as it gathers all four true statements (A, B, C, D) and omits E.