Q72.Contrapositive of the statement "If two numbers are not equal, then their squares are not equal". is : (1) If the squares of two numbers are not equal, then (2) If the squares of two numbers are equal, then the the numbers are equal. numbers are not equal. (3) If the squares of two numbers are equal, then the (4) If the squares of two numbers are not equal, then numbers are equal. the numbers are not equal.
What This Question Tests
This question directly tests the definition and formation of the contrapositive of a given conditional logical statement.
Concepts Tested
Formulas Used
Contrapositive of p → q is ¬q → ¬p
📚 NCERT Sections This Tests
14.2 — Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 · Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
14.1 — In An N-Type Silicon, Which Of The Following Statement Is True:
Physics Class 12 · Chapter 14
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.
9.5 — How Will You Convert:
Chemistry Class 12 · Chapter 9
9.5 How will you convert: (i) Ethanoic acid into methanamine (ii) Hexanenitrile into 1-aminopentane (iii) Methanol to ethanoic acid (iv) Ethanamine into methanamine (v) Ethanoic acid into propanoic acid (vi) Methanamine into ethanamine (vii) Nitromethane into dimethylamine (viii) Propanoic acid into ethanoic acid? 9.6 Describe a method for the identification of primary, secondary and tertiary amines. Also write chemical equations of the reactions involved.
📋 Question Details
- Chapter
- Mathematical Reasoning
- Topic
- Contrapositive of a statement
- Year
- 2019
- Shift
- 11 Jan Shift 2
- Q Number
- Q72
- Type
- Conceptual
- NCERT Ref
- Class 11 Mathematics Ch 14: Mathematical Reasoning
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