A Draw the structures for the following compounds-i Propanonei Butanoneb Write the IUPAC names of the following-i HCHOii CH 3 CHOiii CH 3 CH 2 CHOiv CH 3 CH 2 CH 2 CHOc Which functional group is likely to be present in an organic compound having the molecular formula C 4 H 10 O - Write the formula of the organic compound-

(a) The molecular structures for nbsp;propanone nbsp;(C3H6O) and butanone (C4H8O) are as follows: Propanone: Butanone: (b) Formula nbsp; nbsp; nb ...

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Standard X

Chemistry

Nomenclature of Alcohols

a Draw the st...

Question

(a) Draw the structures for the following compounds:
(i) Propanone
(i) Butanone

(b) Write the IUPAC names of the following:
(i) HCHO
(ii) CH₃CHO
(iii) CH₃CH₂CHO
(iv) CH₃CH₂CH₂CHO

(c) Which functional group is likely to be present in an organic compound having the molecular formula C₄H₁₀O? Write the formula of the organic compound.

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Solution

(a) The molecular structures for propanone (C₃H₆O) and butanone (C₄H₈O) are as follows:
Propanone:

Butanone:

(b) Formula IUPAC name
(i) HCHO Methnal
(ii) CH₃CHO Ethanal
(iii) CH₃CH₂CHO Propanal
(iv) CH₃CH₂CH₂CHO Butanal

(c) The functional group, likely to be present in an organic compound having the molecular formula C₄H₁₀O, is the alcohol group (-OH). The formula of the compound will be C₄H₉OH (butanol).

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Similar questions

Q. (a) Which functional group do you think can be present in an organic compound having the molecular formula C₅H₁₀O₂? Write the formula of the organic compound.
(b) Give one example each of the compounds having the following functional groups:
(i) Aldehyde group
(ii) Alcohol group
(iii) Carboxylic acid group
(iv) Halo group
(c) Give one example each of the compounds having the following functional groups:
(i) Alkene group
(ii) Alkyne group

Three organic compounds A, B and C have the following molecular formulae :
A $C_{4} H_{8} O_{2}$
B $C_{4} H_{10} O$
C $C_{4} H_{8} O$
(a) Which compound contains an alcohol group? Write its name and structural formula.
(b) Which compound contains a carboxyl group? Write its name and structural formula.
(c) Which molecular formula can represent an aldehyde as well as a ketone? Write the names and structural formulae of the aldehyde and ketone represented by this molecular formula.

Q. (a) What is meant by a functional group? Explain with an example.
(b) Write three common functional groups present in organic compounds. Giver their symbols/formulae.
(c) Name the functional groups present in the following compounds:
(i) CH₃COOH
(ii) CH₃CH₂CHO
(iii) C₂H₅OH
(iv) CH₃COCH₂CH₃
(d) Name the functional group which always occurs in the middle of a carbon chain.
(e) Draw the structures for the following compounds:
(i) Ethanal
(ii) Propanal
(iii) Butanal
(iv) Pentanal

Q. (a) Write the name and formula of an organic compound containing a ketone functional group.
(b) Write the names and formulae for the first three members of the homologous series for chloroalkanes.
(c) How would you name the following compound?
CH₃– CH₂ – Br

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