Question

Q.26. (i) Draw the structure of an isomer of straight chain butane.
Draw the structure of an aldehyde with the molecular formula C2H4O.
line Write the formula of ethanol and its previous homologue.​

Answer 1

Answer:

Butane is an alkane with four carbon atoms so molecular formula is C4H10. It has two isomers; n-butane and isobutane.



Here n-butane is a straight-chain compound with four carbon atoms bonded with single covalent bonds.



Another isomer is isobutane or 2-methylpropane in which three carbon atoms from the parent chain and one carbon atom is placed as the side chain at C-2 of the parent chain. All carbon atoms have 4 valencies which are satisfied either by carbon atoms or hydrogen atoms.