Organic Chemistry

Question 1

unique nature of C atom

Answer 1

1. teravalency
2. catenation

Question 2

define catenation

Answer 2

tendency of an element to form chains of identical atoms

Question 3

types of organic compounds

Answer 3

hydrocarbons (aliphatic- saturated and unsaturated, cyclic- homocyclic and heterocyclic)

Question 4

saturated compound

Answer 4

single bond

Question 5

unsaturated compound

Answer 5

double or triple bond between C atoms

Question 6

cyclic compounds

Answer 6

contain three or more C atoms in their molecules
AKA carbocyclic compounds

Question 7

alicyclic compounds

Answer 7

ringed carbon compounds containing three or more atoms of carbon arranged in a closed structure

Question 8

aromatic compounds

Answer 8

contain at least one benzene rings in their molecules. (benzene has 6 carbon atoms have single bond and double bond alternating)

Question 9

define homologous series

Answer 9

is a group of organic compounds having a similar structure and similar chemical properties in which the successive compounds differ by a CH2 group
ex: alkane, alkene, alkyne

Question 10

characteristics of homologous series

Answer 10

1. all members have general formula same
2. each member differs from the preceding one by the addition of CH2 group by molecular mass 14
3. chemical properties remain same
4. increase in molecular wt. down a series

Question 11

significance of homologous series

Answer 11

1. nature of any member of that family can be found, if one is known
2. helps to predict the properties of those compounds that are yet to be prepared

Question 12

define nomenclature

Answer 12

system of assigning names to organic compounds

Question 13

define alkyl group

Answer 13

obtained after removing one atom of hydrogen from alkane molecule