Continuity and Differentiability MCQs Class 12
Continuity and Differentiability MCQs Class 12
Class: CBSE Class 12 Mathematics
Subject: Mathematics
Section: Continuity and Differentiability
Topic: Continuity and Differentiability
Board: CBSE Board Examinations
Subject: Mathematics
Section: Continuity and Differentiability
Topic: Continuity and Differentiability
Board: CBSE Board Examinations
Instructions: These Multiple Choice Questions (MCQs) are designed strictly as per the NCERT syllabus, making them ideal for CBSE Class 12 Board Examination standard practice.
Q1. A function is continuous if limit equals:
Answer: B
Explanation: lim x→a f(x) = f(a).
Explanation: lim x→a f(x) = f(a).
Q2. Differentiability implies:
Answer: A
Explanation: Differentiable ⇒ continuous.
Explanation: Differentiable ⇒ continuous.
Q3. Derivative represents:
Answer: B
Explanation: Rate of change.
Explanation: Rate of change.
Q4. If left and right limits unequal:
Answer: B
Explanation: Limit doesn’t exist.
Explanation: Limit doesn’t exist.
Q5. Derivative of constant:
Answer: B
Explanation: No rate of change.
Explanation: No rate of change.
Q6. d/dx (xⁿ) =
Answer: A
Explanation: Power rule.
Explanation: Power rule.
Q7. Differentiability requires function be:
Answer: A
Explanation: Necessary condition.
Explanation: Necessary condition.
Q8. Derivative of sin x:
Answer: A
Explanation: Standard derivative.
Explanation: Standard derivative.
Q9. Derivative of cos x:
Answer: B
Explanation: Standard rule.
Explanation: Standard rule.
Q10. If derivative undefined, function:
Answer: B
Explanation: Slope not defined.
Explanation: Slope not defined.
Q11. Derivative of eˣ:
Answer: A
Explanation: Exponential property.
Explanation: Exponential property.
Q12. Derivative of ln x:
Answer: A
Explanation: Log rule.
Explanation: Log rule.
Q13. Product rule:
Answer: B
Explanation: Differentiation law.
Explanation: Differentiation law.
Q14. Quotient rule numerator:
Answer: A
Explanation: Standard formula.
Explanation: Standard formula.
Q15. Chain rule applies to:
Answer: A
Explanation: Function of function.
Explanation: Function of function.
Q16. Derivative of tan x:
Answer: A
Explanation: Trigonometric derivative.
Explanation: Trigonometric derivative.
Q17. Non‑differentiable point example:
Answer: A
Explanation: Sharp corner.
Explanation: Sharp corner.
Q18. If function continuous everywhere:
Answer: A
Explanation: Continuity ≠ differentiability.
Explanation: Continuity ≠ differentiability.
Q19. Derivative geometrically:
Answer: A
Explanation: Slope of tangent.
Explanation: Slope of tangent.
Q20. Higher order derivatives denote:
Answer: A
Explanation: d²y/dx² etc.
Explanation: d²y/dx² etc.