Answered

Formula A: CH3

Formula B: C2H6

Given the two formulas representing the same compound:

Which statement describes these formulas?

(1) Formulas A and B are both empirical.

(2) Formulas A nd B are both molecular.

(3) Formula A is empirical and Formula B is molecular.

(4) Formula A is molecular and Formula B is empirical.

Verified Answer :

Haophan

(3) because Hydrocarbon compound has 3 forms:
CnH2n
CnH2n-2
And CnN2n+2

Correct option is (3).

Empirical formula:-Simplest whole number ratio of various atoms present in a compound.

Molecular formula:-The formula that gives the total number of atoms of each element in each molecule of a substance.

So, \(C_2H_6\)(formula B) is the molecular formula, and \(CH_3\) (Formula A)is the empirical formula.

Hence, the correct option is (3).

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