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प्रश्न
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?
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उत्तर
- The given hydrocarbon is benzene.
- The given hydrocarbon is included in cyclic hydrocarbon.
- The compounds having this characteristic unit in their structure are called aromatic compounds.
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संबंधित प्रश्न
What is a homologous series?
State any four characteristics of a homologous series
By how many carbon atoms and hydrogen atoms do any two adjacent homologues differ?
Write the names and formulae for the first three members of the homologous series of chloroalkanes.
Give the name and structural formula of one homologue of the following:
CH3OH
An organic compound having the molecular formula C3H6O can exist in the form of two isomers A and B having different functional groups. The isomer A is a liquid which is used as a solvent for nail polish. The isomer B is also a liquid. An aqueous solution of one of the lower homologues of B is used for preserving biological specimens in the laboratory
(a) What is compound A?
(b) Write the electron-dot structure of A.
(c) What is compound B?
(d) Write the electron-dot structure of B.
(e) Name the lower homologue of compound B which is used in preserving biological specimens.
What is the difference in the molecular formula of any two adjacent homologues in terms of molecular mass?
.
Study the different conclusions drawn by students of a class on the basis of observations of preserved/available specimens of plants and animals.
I. Potato and sweet potato are analogous organs in plants.
II. Wings of insects and wings of birds are homologous organs in animals.
III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of citrus and tendrils of cucurbita are analogous organs in plants.
The correct conclusions are:
(A) I, and II
(B) II and IV
(C) I and III
(D) III and IV
Give three points to differentiate between saturated and unsaturated
hydrocarbons.
What is the difference in the molecular formula of any two adjacent homologues:
(i) In terms of molecular mass
(ii) In terms of number and kind of atoms per molecule?
The general molecular formula for the homologous series of alkynes is _______.
Cyclohexane : Cyclic hydrocarbon : : Isobutylene : _______
There are different general molecular formula for all members of the homologous series.
What is called homologous series? Give any three of its characteristics?
Successive members of a homologous series vary by how many atomic mass unit?
The first member of alkyne homologous series is
Name the following organic compound:
The first homologue whose general formula is CnH2n.
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 C3H6.
- 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.
