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MathsEasyMCQ2021 · 31 Aug Shift 2

Q68.Negation of the statement ( 𝑝∨𝑟) ⇒( 𝑞∨𝑟) is : (1) ~𝑝∧𝑞∧~𝑟 (2) ~𝑝∧𝑞∧𝑟 (3) 𝑝∧~𝑞∧~𝑟 (4) 𝑝∧𝑞∧𝑟

What This Question Tests

This question directly tests the knowledge of the negation rule for conditional statements (P implies Q) and its equivalence in terms of conjunction and negation.

Concepts Tested

Conditional statements (Implication)Negation of statementsLogical connectives (OR, AND)

Formulas Used

~(P ⇒ Q) ≡ P ∧ ~Q

📚 NCERT Sections This Tests

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70% match

14.1 In an n-type silicon, which of the following statement is true: (a) Electrons are majority carriers and trivalent atoms are the dopants. (b) Electrons are minority carriers and pentavalent atoms are the dopants. (c) Holes are minority carriers and pentavalent atoms are the dopants. (d) Holes are majority carriers and trivalent atoms are the dopants.

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5.15 Discuss the nature of bonding in the following coordination entities on the basis of valence bond theory: (i) [Fe(CN)6] 4– (ii) [FeF6] 3– (iii) [Co(C2O4)3]3– (iv) [CoF6] 3–

📋 Question Details

Chapter: Mathematical Reasoning
Topic: Negation of conditional statements
Year: 2021
Shift: 31 Aug Shift 2
Q Number: Q68
Type: MCQ
NCERT Ref: Class 11 Mathematics Ch 14: Mathematical Reasoning

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