Q.

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

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a

Both A and R are true and R is the correct explanation of A

b

A is true but R is false

c

Both A and R are true and R is the not correct explanation of A

d

Both A and R is false

answer is A.

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Detailed Solution

Molecular mass of ethene C2H4=28

E.F of ethene is =CH2

EFM=28/14=2=n

EF is simplest positive integer ratio of various atoms present in a given compound

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Assertion (A) : The empirical mass of ethene is half of its molecular massReason (R) : The empirical formula represents the simplest whole number ratio of various atoms present in a compound