UGC NET Questions (Paper – 1)

Statements A, B, C and D correctly describe the standard structure of a categorical syllogism: it has two premises and one conclusion, with the major term as predicate, the minor term as subject and the middle term linking the premises but not appearing in the conclusion. Statement E is false because a syllogism with two negative premises is invalid; such premises fail to provide a constructive linkage between terms. Thus the combination containing A, B, C and D and excluding E is the only fully correct option.

Option A:
Option A is correct since it includes all structural truths about categorical syllogisms while rejecting E, which misstates a condition for validity. It reflects rules that are often checked using Venn diagrams in NET questions.

Option B:
Option B is incomplete because although A, B and C are true, it omits D, so it does not explain the crucial role of the middle term in linking the premises without appearing in the conclusion. Without D, the structure is only partially described.

Option C:
Option C is incorrect because it includes E, the false claim that two negative premises yield validity, and excludes B, so it both admits an invalid rule and omits a correct one. This makes the combination logically unsound.

Option D:
Option D is wrong because it leaves out A and therefore fails to note that the standard syllogism has exactly two premises and one conclusion. While B, C and D are true, omitting A gives an incomplete account of the syllogistic form.

Illicit process is the general name for the fallacy that occurs when a term is distributed in the conclusion without being distributed in the corresponding premise. This violates the requirement that distribution in the conclusion must be supported by distribution in the premises. The fallacy can take the specific form of illicit major or illicit minor. Hence the description in the stem matches illicit process.

Option A:
Option A, illicit major, occurs when the major term is distributed in the conclusion but not in the major premise. It is one specific type of illicit process. Since the stem speaks in general terms, illicit major alone is too narrow.

Option B:
Option B, illicit minor, arises when the minor term is distributed in the conclusion but not in the minor premise. This is the other specific form of the general fallacy. Again, it does not cover both possibilities mentioned implicitly in the stem.

Option C:
Option C, undistributed middle, is a different fallacy where the middle term is never distributed in either premise. It does not involve a term becoming newly distributed in the conclusion. Therefore undistributed middle is not the correct answer.

Option D:
Option D correctly names illicit process as the overarching fallacy of mis-distribution between premise and conclusion. It captures the improper extension of a term’s scope in the conclusion. Thus illicit process is the most appropriate choice.

Statements A, B and C correctly identify the roles of major, minor and middle terms, and E is true about their use in solving exam questions. D is false because the major premise is defined as the premise containing the major term, not the minor term. Therefore, the correct collection of true statements is A, B, C and E only.

Option A:
Option A is incomplete since it omits E, not acknowledging the practical importance of term identification for applying rules like distribution and mood-figure checks. Without E, the answer does not reflect the exam-related aspect.

Option B:
Option B is incorrect because it includes D, which incorrectly defines the major premise by reference to the minor term. This misidentification would mislead students about syllogism structure.

Option C:
Option C is wrong as it leaves out A, omitting the statement that the major term is the predicate of the conclusion, which is central to understanding syllogistic form. Thus B, C and E only cannot be right.

Option D:
Option D is correct, gathering all true statements about the three terms and their exam relevance while excluding the false definition in D of the stem. It matches the standard explanation of terminology in categorical syllogism.

A categorical syllogism consists of exactly three categorical propositions: two premises and a conclusion. It involves three distinct terms arranged so that each term appears in two of the propositions. This structured pattern allows clear rules for assessing validity. Therefore the argument form described is called a categorical syllogism.

Option A:
Option A, enthymeme, is an argument in which one premise or the conclusion is left implicit and so does not fully display all its categorical components. While it may be based on syllogistic reasoning, it is not the complete formal pattern mentioned in the stem.

Option B:
Option B, disjunctive argument, uses a premise containing a disjunction, often combined with another premise to infer something about the disjuncts. It is not characterised by having all statements as categorical propositions. Thus disjunctive argument is not correct.

Option C:
Option C is correct because categorical syllogism precisely names the three-proposition deductive structure made up solely of categorical statements. It forms the backbone of traditional Aristotelian logic.

Option D:
Option D, analogical argument, reasons from similarities between cases and does not require two categorical premises and a categorical conclusion. Therefore analogical argument does not match the form specified.

A categorical syllogism is composed entirely of categorical propositions, each stating a relation between two classes. Both premises and the conclusion are of this categorical form. This type of syllogism is central to traditional Aristotelian logic. Therefore the syllogism described in the stem is called categorical.

Option A:
Option A names categorical, which exactly denotes syllogisms whose statements are all categorical propositions. The pattern uses quantifiers such as all, some or no to relate classes. Hence this option correctly answers the question.

Option B:
Option B, hypothetical, involves at least one conditional premise of the form “if…then”. Such syllogisms are structurally different from purely categorical ones. Thus hypothetical does not fit the description given.

Option C:
Option C, disjunctive, includes a disjunctive premise presenting alternatives with “either…or”. It is not restricted to categorical propositions alone. Therefore disjunctive is not the right term for a syllogism composed solely of categorical statements.

Option D:
Option D, conjunctive, is not a standard name for a distinct class of syllogisms in traditional logic. Conjunction is a connective, but a conjunctive syllogism is not the usual label here. Hence conjunctive cannot be the correct answer.

Statements A and B correctly describe the standard structure: two premises leading to a conclusion, each with subject and predicate terms. D is also correct because syllogistic validity concerns whether the conclusion follows logically from the premises, regardless of whether those premises are actually true. C is false since the middle term appears in the premises, not the conclusion, and E is false because a valid argument can have a true conclusion even when its premises are false. Therefore A, B and D only are correct.

Option A:
Option A is correct since it includes exactly the structural and logical-form facts without importing the false claims about the middle term and truth of premises forcing truth of conclusion.

Option B:
Option B is incorrect because it includes C, which mislocates the middle term in the conclusion instead of in the premises, so it puts a wrong statement into the combination.

Option C:
Option C is wrong as it adds E, which wrongly insists that false premises force a false conclusion, and it also fails to include B, so it contains errors/omissions.

Option D:
Option D is incorrect because although B and D are true, E is false, and dropping A loses the accurate description that a categorical syllogism has two premises and one conclusion.

Statements A, C, D and F are correct, whereas B and E are incorrect. A standard categorical syllogism has three propositions involving exactly three distinct terms, and validity requires that the middle term be distributed at least once. Two negative premises cannot yield a valid conclusion because they fail to establish a positive link between the major and minor terms. Venn diagrams are widely used in reasoning questions to test such syllogisms visually. By contrast, B wrongly claims four terms, and E misstates the relationship between universal premises and the quantity of the conclusion. Therefore A, C, D and F only is the correct combination.

Option A:
Option A is incorrect because it omits F, leaving out the important fact that Venn diagrams are a recognised tool for checking validity. While A, C and D are true, the absence of F means this option does not contain all correct statements. Hence A, C and D only cannot be accepted.

Option B:
Option B is wrong since it includes E as though it were correct. E claims that universal premises always force a particular conclusion, but some valid moods, like Barbara, produce universal conclusions. Including this false rule makes the combination logically unsound.

Option C:
Option C is correct because it groups A, C, D and F, capturing the structural features and testing method of categorical syllogisms. It excludes B, which inflates the number of terms, and E, which oversimplifies the quality-quantity relations. Thus this option matches the genuine rules of classical syllogistic logic.

Option D:
Option D is incorrect because it accepts E as well as C, D and F while omitting A. Leaving out A ignores the three-proposition nature of syllogisms, and including E introduces a faulty generalisation about conclusions. Therefore C, D, E and F only cannot be the right answer.

Statements A, B and C express standard rules from traditional syllogistic logic. A is correct because a categorical syllogism uses three and only three terms, each appearing in specific roles. B is correct since failure to distribute the middle term at least once leads to the fallacy of undistributed middle. C is also true because with two negative premises there is no logical basis to relate the subject and predicate terms, so no conclusion follows. Statement D is false because valid syllogisms cannot have both premises negative and the conclusion negative simultaneously, so only A, B and C form the correct set.

Option A:
Option A is incomplete as it includes only A and B but omits C, which is an important rule prohibiting valid conclusions from two negative premises. Without C, the characterisation of valid and invalid syllogisms is not complete. This makes the option unsuitable for the correct answer.

Option B:
Option B is correct because it brings together all the true statements about term count, middle-term distribution and the restriction on negative premises. It also implicitly excludes the incorrect idea in D that a valid syllogism may have all three statements negative. This matches the logical rules examined in NET questions.

Option C:
Option C is incorrect because it includes D, which falsely allows a configuration with both negative premises and a negative conclusion, while omitting B. Losing the distribution condition on the middle term and accepting a wrong rule about negativity makes the option invalid.

Option D:
Option D is wrong because it pairs B with D, treating the clearly false D as if it were correct and leaving out A and C. The combination therefore mixes truth with error and fails to capture the overall structure of valid categorical syllogisms.