Free NCERT Solutions, Notes & MCQs for Class 9–12

REAL NUMBERS - True/False

Your Progress 0 / 25 attempted

Q 01 / 25

Every natural number is a real number.

✔ True ✘ False

Q 02 / 25

Every irrational number is a real number.

✔ True ✘ False

Q 03 / 25

Every integer is a rational number.

✔ True ✘ False

Q 04 / 25

Every real number is an irrational number.

✔ True ✘ False

Q 05 / 25

The decimal expansion of every rational number is either terminating or non-terminating repeating.

✔ True ✘ False

Q 06 / 25

All prime numbers are odd numbers.

✔ True ✘ False

Q 07 / 25

0 is a natural number.

✔ True ✘ False

Q 08 / 25

The square of every prime number has exactly 3 factors.

✔ True ✘ False

Q 09 / 25

Every rational number can be expressed as a terminating decimal.

✔ True ✘ False

Q 10 / 25

The sum of two irrational numbers is always irrational.

✔ True ✘ False

Q 11 / 25

The product of two irrational numbers is always irrational.

✔ True ✘ False

Q 12 / 25

All integers are real numbers.

✔ True ✘ False

Q 13 / 25

The HCF of two consecutive numbers is always 1.

✔ True ✘ False

Q 14 / 25

0 is a rational number.

✔ True ✘ False

Q 15 / 25

The Fundamental Theorem of Arithmetic is about expressing numbers as products of prime numbers.

✔ True ✘ False

Q 16 / 25

The product of two rational numbers is always rational.

✔ True ✘ False

Q 17 / 25

Every point on the number line corresponds to a real number.

✔ True ✘ False

Q 18 / 25

There are infinitely many prime numbers.

✔ True ✘ False

Q 19 / 25

The LCM of two co-prime numbers is equal to their product.

✔ True ✘ False

Q 20 / 25

If a number is divisible by 2 and 3, it must be divisible by 6.

✔ True ✘ False

Q 21 / 25

The decimal expansion of an irrational number is non-terminating and non-repeating.

✔ True ✘ False

Q 22 / 25

Every real number can be written as a fraction.

✔ True ✘ False

Q 23 / 25

The HCF of two numbers is always one of the numbers.

✔ True ✘ False

Q 24 / 25

Every terminating decimal is a rational number.

✔ True ✘ False

Q 25 / 25

The set of rational numbers is closed under subtraction.

✔ True ✘ False

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ACADEMIA AETERNUM तमसो मा ज्योतिर्गमय · Est. 2025

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