Question

Assertion (A): The empirical mass of ethene is half of its molecular mass. Reason (R): The empirical formula represents the simplest whole number ratio of various atoms present in a compound.
(a) Both A and R are true and R is the correct explanation of A.
(b) A is true but R is false
(c) A is false but R is true
(d) Both A and R are false.

Answer 1

(a) Empirical formula of ethene = CH2
Empirical formula mass of ethene =14 amu
= 1/2 — x molecular mass of ethene .
Empirical formula shows that ethene has (C : H):: 1 : 2

Answer 2

Correct answer is c.