EASY
10th ICSE
IMPORTANT
Earn 100

 What are hydrocarbons? List two categories in which these compounds may be classified. 

Important Questions on Carbon and Its Compounds

MEDIUM
10th ICSE
IMPORTANT

What is meant by homologous series of carbon compounds? Classify the following carbon compounds into two homologous series and name them.

C3H4, C3H6, C4H8, C4H8, C5H8, C5H10

EASY
10th ICSE
IMPORTANT
What is meant by "structural isomers"? Give a reason why propane (C3H8) cannot exhibit this characteristic.
MEDIUM
10th ICSE
IMPORTANT
Two organic compounds X and Y have the following molecular formula. 
(i) C3H6O,    (ii) C3H8

Which compound belongs to an alcohol group? Write its name and structural formula. 
MEDIUM
10th ICSE
IMPORTANT

Two organic compounds X and Y have the following molecular formula. 
(i) C3H6O,    (ii) C3H8

 Which compound contains an aldehyde group? Write its name and structural formula. 

HARD
10th ICSE
IMPORTANT
Write three different chemical reactions showing the conversion of ethanoic acid to sodium ethanoate, Write balanced chemical equation in each case. Write the name of the reactants and the products other than ethanoic acid and sodium ethanoate in each case.
MEDIUM
10th ICSE
IMPORTANT
Why are carboxylic acids called weak acids? 
HARD
10th ICSE
IMPORTANT
Name the compound formed when ethanol is heated in excess of conc. sulphuric acid at 443 K. Also write the chemical equation of the reaction stating the role of conc. sulphuric acid in it. What would happen if hydrogen is added to the product of this reaction in the presence of catalysts such as palladium or nickel?
MEDIUM
10th ICSE
IMPORTANT
One of the commercially important carbon compounds is ethanol. Mention its two uses. When, a small piece of sodium is dropped in ethanol, a gas is evolved. How can we test the gas evolved?