Advertisements
Advertisements
प्रश्न
The general molecular formula for the homologous series of alkynes is _______.
विकल्प
CnH2n
`"C"_"n""H"_("2n" + 2)`
`"C"_"n""H"_("2n" - 2)`
`"C"_"n""H"_("2n" - 1)`
Advertisements
उत्तर
The general molecular formula for the homologous series of alkynes is `underline("C"_"n""H"_("2n" - 2))`.
संबंधित प्रश्न
What is a homologous series?
Write the next homologue of the following: C2H4
What is meant by homologous series of carbon compounds?
Write the molecular formula of the 2nd and 3rd member of the homologous series where the first member is ethyne.
Give the molecular formula of one homologue of the following:
C3H6
Write the names and formulae for the first three members of the homologous series for chloroalkanes.
What is a homologous series? Explain with an example.
The molecular formula of an organic compound is C18H36. Name its homologous series.
The molecular formula of the third member of the homologous series of ketones is:
(a) C4H8O
(b) C3H6O
(c) C5H10O
(d) C6H12O
Give the dot diagram of the first member of the alcohol.
Haloalkanes react with alkalies to produce alcohol. Give the equation for the preparation of the second member of the homologous series of alcohol. State under what condition the reaction occurs.
As one ascends in any homologous series, physical properties change gradually.
Complete the following chart by using examples given in brackets.
(isobutylene, cyclohexane, propane, cyclohexene, cyclopentane, benzene, propyne, isobutane, propene)
| Straight chain hydrocarbons | Branched chain hydrocarbons | Cyclic hydrocarbons |
C3H8 belongs to the homologous series of ______.
Name the following organic compound:
The first homologue whose general formula is CnH2n.
A carbon compound ‘A’ having melting point 156K and boiling point 351K, with molecular formula C2H6O is soluble in water in all proportions.
- Identify ‘A’ and draw its electron dot structure.
- Give the molecular formulae of any two homologues of ‘A’.
Consider the carbon compounds having following molecular formula:
(i) C3H6 (ii) C3H8 (iii) C4H6 (iv) C6H6 (v) C6H12
- State the number of double covalent bonds present in C3H8.
- Write the formula of first member of the homologous series to which the carbon compound C4H6 belongs.
- Which one of the above compounds forms a ring structure of carbon atoms?
- Identify, which of the above compounds, is a member of alkane series.
Name and draw the electron dot structure of first homologue of alkynes series.
Name the third homologue of alcohols.
