Question

:. Write the general formula for alkanes, alkynes, alkenes. Write the molecular formula of
first three members of each series.​

Answer 1

Explanation:

alkanes= C(n)h(2n+2)

molecular formula of alkane series :

1. CH4 (methane)
2. C2H6 (ethane)
3. C3H8(propane)

alkenes = C(n)H(2n)

molecular formulas :

1. C2H4(ethene)
2. C3H6(propene)
3. C4H8(butene)

alkynes = C(n)H(2n-2)

molecular formulas:

1. C2H2 ( ethyne)
2. C3H4 ( propyne)
3. C4H6 ( butyne)

Answer 2

Answer:

General Formula:-

1. alkanes- CnH2n+2

2. alkenes- CnH2n

3. alkynes- CnH2n-2

First three members:-

1. alkanes- CH4, C2H6, C3H8

2. alkenes- C2H4, C3H6, C4H8

3. alkynes- C2H2, C3H4, C4H6