Advertisements
Advertisements
प्रश्न
Give a chemical test to distinguish between Saturated and Unsaturated?
Advertisements
उत्तर
Chemical test to distinguish :
Saturated and Unsaturated
Chemical test:- Bromine water test, if unsaturated hydrocarbons are added to it then the solution turns colourless. The unsaturated hydrocarbon decolourise bromine water. Whereas no change takes place to the solution when saturated hydrocarbons are added to bromine water.
Physical test:- Distinction between saturated and unsaturated hydrocarbons: Saturated hydrocarbons burn in the air with clear (blue) flame, whereas burning of unsaturated hydrocarbons (alkenes and alkynes) gives sooty (yellowish) flame. Saturated hydrocarbons contain less percentage of carbon as compared to unsaturated hydrocarbons; therefore, they get completely oxidised by the oxygen present in the air on burning. Unsaturated hydrocarbons require a lot of oxygen for complete oxidation whose demand is not fulfilled by air. Due to this reason, unsaturated hydrocarbons burn with a sooty flame. The sooty flame contains partially burnt carbon in the form of soot.
संबंधित प्रश्न
Give two equations to show the conversion of a unsaturated compound to
saturated compound.
Fill in the blank with appropriate word/words.
In laboratory ethyne is prepared by the reaction of water an _________
Methane reacts with energy of chlorine in diffused sunlight to give the final product as
Draw the structural formula of ethyne.
Name the organic compound prepared by each of the following reactions:
\[\ce{CH3I + 2H- ->}\]
The catalyst used for the conversion of ethane to ethane is commonly ______.
Using the structural formula, identify the functional group by circling it:
Dimethyl ether
Equation for that reaction when compound A is bubbled through bromine dissolved in carbon trtrachloride is as follows :
DIAGRAM
Draw the structure of A.
Write a balanced chemical equation for the following:
Burning of ethane in plentiful supply for air.
Fill in the blank.
The compound formed when ethane reacts with hydrogen is _________ (CH4,C2H6,C3H6).
