nomenclature tidbits

Question 1

rule to check aromatic

Answer 1

2,6,10,14… pi electrons + conjugation

Question 2

rule to check anti aromatic

Answer 2

4,8,12,…. pi electrons + conjugation

Question 3

how to count lone pairs in furan

Answer 3

ignore 1 count 1 pair

Question 4

how to count lone pairs in thiophene

Answer 4

ignore 1 count 1 pair

Question 5

how to count lone pairs in pyrrole

Answer 5

ignore the pair

Question 6

how to count lone pairs in pyridine

Answer 6

ignore the pair

Question 7

stability order of a, aa, na

Answer 7

a>na>aa

Question 8

test of unsaturation

Answer 8

add reddish brown bromine

if it turns colourless that indicates the presence of either a double or triple carbon bond

Question 9

x degree carbon has _____ hydrogens

Answer 9

4-x

Question 10

vinylic carbon

Answer 10

the carbon in a double bond itself

Question 11

allylic carbon

Answer 11

the carbon attached to a vinylic carbon

Question 12

priority of double vs triple bond

Answer 12

if position same double > triple

if the position of triple lesser then triple> double

Question 13

priority of alkyl groups

Answer 13

propyl>ethyl>methyl

Question 14

how to count in bicyclo

Answer 14

bridgehead to bigger ring to smaller ring

Question 15

how to count in spiro

Answer 15

bridgehead to smaller to bigger