Answer
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Hint: Molecular formula is a way to write a substance using the chemical symbol and number subscripts to mention the number of the atoms into that chemical compound. On the other hand, condensed formula is basically like structural formula but here it is showing that all groups are attached with one single atom.
Complete step by step answer:
There are some compounds which have the same molecular formula but different arrangements of atoms with different properties are known as isomers to each other.
There are different kinds of isomers. They are-
Constitutional isomers : which compounds are same in molecular formula but bonds are different in between the atoms are called constitutional isomers.
Stereoisomers: which compounds are same in molecular formula ; bonds are same in between the atoms but the relative positions of the groups are different; those compounds are called Stereoisomers.
In the case of hexane there are a total five constitutional isomers present. But no stereoisomers are present.
Now the molecular formula of those isomers of hexane is \[{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{14}}}}\]. But the condensed isomers are different in each isomer, this is because the bonds between the atoms of the molecule are different in the isomers of hexane.
So, the given statement is false.
Therefore, the answer is 0.
Note:
Empirical formula of any compound gives the lowest value of ration of the elements present in a molecule. But from this formula the actual number of the elements present in the molecule cannot be defined.. The molecular formula of a compound is with the actual number of the elements present in a compound. The relation between them is given by \[{\text{ molecular formula = }}{\left( {{\text{ empirical formula}}} \right)_{\text{n}}}\].
Complete step by step answer:
There are some compounds which have the same molecular formula but different arrangements of atoms with different properties are known as isomers to each other.
There are different kinds of isomers. They are-
Constitutional isomers : which compounds are same in molecular formula but bonds are different in between the atoms are called constitutional isomers.
Stereoisomers: which compounds are same in molecular formula ; bonds are same in between the atoms but the relative positions of the groups are different; those compounds are called Stereoisomers.
In the case of hexane there are a total five constitutional isomers present. But no stereoisomers are present.
Now the molecular formula of those isomers of hexane is \[{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{14}}}}\]. But the condensed isomers are different in each isomer, this is because the bonds between the atoms of the molecule are different in the isomers of hexane.
So, the given statement is false.
Therefore, the answer is 0.
Note:
Empirical formula of any compound gives the lowest value of ration of the elements present in a molecule. But from this formula the actual number of the elements present in the molecule cannot be defined.. The molecular formula of a compound is with the actual number of the elements present in a compound. The relation between them is given by \[{\text{ molecular formula = }}{\left( {{\text{ empirical formula}}} \right)_{\text{n}}}\].
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