IB myp 4-5 Chemistry – Practice Questions- All Topics
Topic :IUPAC-Alkanes
Topic :IUPAC- Weightage : 21 %
All Questions for Topic : Alkanes,Alkenes,Alcohols,Carboxylic Acid,Esters,Structural Formulas
Question:
Determine the relationship between the number of carbons and the hydrogens in alkanes: if an alkane has n carbons, how many hydrogens does it have? Write your answer in the form CnH?.
▶️Answer/Explanation
Ans: CnH2n+2
Question:
Re-write the equation for the hydrogenation of ethene using structural formulae.
▶️Answer/Explanation
Ans: 
Question:
The alkane, hexane, C6H14, can exist as five different structural isomers. An isomer is a compound that has the same molecular formula but a different structural formula. For example, butane can exist as a straight chain or as the isomer 2-methylpropane. Both these isomers have the molecular formula C4H10.
Apply your knowledge of nomenclature rules for the naming of alkanes and determine the structure and name of the five different isomers of hexane.
▶️Answer/Explanation
Ans: 