MCQs Real and Complex Numbers 9th Class

The post is about Online MCQs about Real and Complex Numbers from Mathematics of class 9. There are 30 MCQs from Chapter 2: Real and Complex Numbers of the 9th class Mathematics Book. Let us start with the Real and Complex Numbers quiz.

Online MCQs about Chapter 2: real and complex numbers from Mathematics of 9th class.

1. $\sqrt{3}\cdot \sqrt{3}$ is a ______ number.

 
 
 
 

2. $\frac{p}{q}$ form of $0.\overline{3}$ is

 
 
 
 

3. Name the property of real numbers used in $\left(\frac{-\sqrt{5}}{2}\right) \times 1 = \frac{-\sqrt{5}}{2}$

 
 
 
 

4. The conjugate of $5+4i$ is

 
 
 
 

5. Which of the following sets have the closure property w.r.t. addition

 
 
 
 

6. Every real number is

 
 
 
 

7. $\sqrt[n]{ab}=$

 
 
 
 

8. If $a, b\in R$ then only one of $a=b$ or a $<b$ or $a>b$ holds is called

 
 
 
 

9. $\sqrt[5]{-8}=$

 
 
 
 

10. $\pi, e, \sqrt{2}, \sqrt{3}$ and $\sqrt{5}$ are called

 
 
 
 

11. If $x+iy+1=4-3i$, then

 
 
 
 

12. The value of $i$ (iota) is

 
 
 
 

13. $\frac{p}{q}$ is a/an _____ number.

 
 
 
 

14. The value of $i^9$ is

 
 
 
 

15. Imaginary part of $(-1+\sqrt{-2})^2$ is

 
 
 
 

16. $\left(27x^{-1}\right)^{-2/3}=$

 
 
 
 

17. Write $4^{2/3}$ with radical sign

 
 
 
 

18. The union of the set of rational numbers and irrational numbers is known as set of

 
 
 
 

19. Write $\sqrt[7]{x}$ in exponential form

 
 
 
 

20. Imaginary part of $-i(3i+2)$ is

 
 
 
 

21. Real part of $2ab(i+i^2)$ is

 
 
 
 

22. A non-terminative, non-recurring decimal represents

 
 
 
 

23. The set of natural numbers is

 
 
 
 

24. The value of $i^{10}$ is

 
 
 
 

25. $\left(\frac{25}{16}\right)^{-1/2}=$

 
 
 
 

26. in $-2+3i$ is called

 
 
 
 

27. Real part of $(-1+\sqrt{-2})^2$ is

 
 
 
 

28. The conjugate of $2+3i$ is

 
 
 
 

29. In $\sqrt[3]{35}$ the radicand is

 
 
 
 

30. If $x, y, z \in R\, \, z<0$ then $x < y \Rightarrow$

 
 
 
 


MCQs Real and Complex Numbers

  • $\left(27x^{-1}\right)^{-2/3}=$
  • Write $\sqrt[7]{x}$ in exponential form
  • Write $4^{2/3}$ with radical sign
  • In $\sqrt[3]{35}$ the radicand is
  • $\left(\frac{25}{16}\right)^{-1/2}=$
  • The conjugate of $5+4i$ is
  • The value of $i^9$ is
  • Every real number is
  • Real part of $2ab(i+i^2)$ is
  • Imaginary part of $-i(3i+2)$ is
  • Which of the following sets have the closure property w.r.t. addition
  • Name the property of real numbers used in $\left(\frac{-\sqrt{5}}{2}\right) \times 1 = \frac{-\sqrt{5}}{2}$
  • If $x, y, z \in R\, \, z<0$ then $x < y \Rightarrow$ If $a, b\in R$ then only one of $a=b$ or a $b$ holds is called
  • A non-terminative, non-recurring decimal represents
  • The union of the set of rational numbers and irrational numbers is known as set of
  • $\sqrt{3}\cdot \sqrt{3}$ is a _ number. $\sqrt[n]{ab}=$ $\sqrt[5]{-8}=$ The value of $i^{10}$ is The conjugate of $2+3i$ is Real part of $(-1+\sqrt{-2})^2$ is Imaginary part of $(-1+\sqrt{-2})^2$ is $\frac{p}{q}$ is a/an number.
  • The value of $i$ (iota) is
  • in $-2+3i$ is called
  • The set of natural numbers is
  • $\pi, e, \sqrt{2}, \sqrt{3}$ and $\sqrt{5}$ are called
  • If $x+iy+1=4-3i$, then
  • $\frac{p}{q}$ form of $0.\overline{3}$ is
MCQs Real and Complex Numbers 9th class Mathematics

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