Question

a) Both A and R are true, and R is correct explanation of the assertion.

b)Both A and R are true, but R is not the correct explanation of the assertion.

c)A is true, but R is false.

d)A is false, but R is true

Assertion: Hydrogen have three isotopes. They are Protium, deuterium and tritium.

Reason: Isotopes are atoms with same atomic numbers and same mass numbers.

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Answer 1

Answer:

The sum of two positive numbers is 11 and the sum of their squares is 65. Find:

i. The difference between their squares.

ii. The sum of their cubes.

Answer 2

Answer:

c) A is true, but R is false