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प्रश्न
What is homologous series?
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उत्तर
A homologous series is a group of organic compounds having similar structures and similar chemical properties.
संबंधित प्रश्न
Define a functional group.
Which part of an organic compound determines chemical properties?
Name the alkyl radical and the functional group of the following organic compound:
C2H5OH
Ethane, methane, ethene, ethyne. (In the increasing order of the molecular weight)
Give the names of any three alkyl groups. How are they formed?
When ethanol is heated with conc. H2SO4 at 170oC, it gets converted into ethane. In this reaction conc. H2SO4 acts as
The list of some organic compounds is given below:
Ethanol, ethane, methane, ethyne and ethene
From the above list, name a compound:
Formed by the dehydration of ethanol by concentrated sulphuric acid.
Draw the structural formula of a compound with two carbon atoms in the following case:
An unsaturated hydrocarbon with carbon to carbon triple bond.
An organic compound undergoes addition reactions and gives a red colour precipitate with ammoniacal cuprous chloride. Therefore, the organic compound could be ______.
Compound A is bubbled through bromine dissolved in carbon tetrachloride, and the product is CH2Br – CH2Br.
\[\ce{A ->[Br2/CCl4] CH2Br - CH2Br}\]
- Draw the structural formula of A.
- What type of reaction has A undergone?
- What is your observation?
- Name (not formula) the compound formed when steam reacts with A in the presence of phosphoric acid.
- What is the procedure for converting the product of (iv) back to A?
Give reason as to why :
Almost 90% of all known compounds are organic in nature
Ethanoic acid reacts with ethanol in the presence of concentrated H2SO4, so as to form a compound and water. The chemical reaction which takes place is called ______.
Give balanced equation for the laboratory preparations of the following organic compound:
A saturated hydrocarbon from iodomethene
Write a balanced chemical equation for the following:
Heating of ethanol at 170oC in the presence of conc. Sulphuric acid
Give a chemical test to distinguish between Saturated and Unsaturated?
Name the compound prepared by the following reaction:
\[\ce{CaC2 + 2H2O ->}\]
Compound X bubbled through bromine dissolved in carbon tetrachloride (CCl4):
\[\begin{array}{cc}
\ce{X ->[Br2/CCl4] CH2Br}\\
\phantom{......}|\\
\phantom{...........}\ce{CH2Br}\\
\end{array}\]
- Draw the structure of X.
- State your observation during the reaction.
The molecular formula of an open-chain organic compound is C3H6. The class of the compound is ______
