Hey students,
Let’s check out a question on Isomerism in Hydrocarbons. Ten Years Series has a couple of questions similar to this one adapted from a top secondary school in Singapore.
PS: Do think through it and leave your suggested answers in the “Comments” section right below this post.
Question:
(Click Image to have a better view)
Related Articles:
- O Levels Chemistry Questions – Organic Chemistry (Carboxylic Acids & Alcohols)
- O Levels Chemistry Questions – Organic Chemistry (Cracking of Crude Oil)
- O Levels Chemistry Questions – Organic Chemistry (Addition Reaction)
- O Levels Chemistry Question – Organic Chemistry, Ether
- O Level Chemistry: Qualitative Analysis / Preparing Salts / Precipitation
Hi.
My answer would be C
A is out as there is the double C=C bond
B and D do not have the same molecular formula
Reply
Formally, Isomers are defined as substances that have the same chemical / molecular formulae but different structural formulae.
In the question above, MTBE has chemical formulae as C5H12O.
chemical formulae of the choices:
A) C5H10O
B) C4H10O
C) C5H12O
D) C5H10O
So the answer must be (C).
Cheers
Sean
Founder & Master Trainer
SimpleChemConcepts.com
Reply
must be see counting no. of H is enough
Reply
C
Reply
A is out because of the double bond (=),
B only has 4 carbon molecules,
D only has 9 hydrogen molecules, therefore the answer is
C 5 carbons, 12 hydrogens and 1 oxygen as the compound MTBE
Reply
myrna Reply:
June 5th, 2010 at 1:57 am
A is out because of the double bond (=)
B only has 4 Carbon molecules
D only has 9 Hydrogen molecules, therefore the answer is C – 5 Carbons, 12 Hydrogens and 1 Oxygen as the compound MTBE
Reply