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प्रश्न
The first member of alkyne homologous series is
विकल्प
ethyne
ethene
propyne
methane
उत्तर
ethyne
Explanation -
The general formula for an alkyne is CnH2n-2. So, the first member of this series is C2H2 (ethyne).
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संबंधित प्रश्न
Write the molecular formula of first two members of homologous series having functional group -Cl.
Write the molecular formula of first two members of homologous series having functional group −Br.
By how many carbon atoms and hydrogen atoms do any two adjacent homologues differ?
Define a homologous series. Give the name and structural formula of one homologue of the following:
CH3OH
What is a homologous series? Explain with an example.
Give the abbreviated formula of the third member of the alcohol.
Give the structure of the second member of the alcohol group
Observe the structural formula and answer the following questions.
- Write the name of the given hydrocarbon.
- The given hydrocarbon is included in which type of hydrocarbon?
- What is the kind of compounds with the above characteristic structure called?
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 |
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’.
