MEDIUM
10th CBSE
IMPORTANT
Earn 100

Give reasons for the following:
(i) Oxidation of ethanol with Cr2O3 produces ethanal while ethanol when oxidised with alkaline KMnO4 produces ethanoic acid.
(ii) Alcohol supplied for industrial purposes is mixed with copper sulphate.

Important Questions on Carbon and its Compounds

MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 2
Complete the following equations and write the names of the products formed:
(i)
(ii)
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 3
Explain giving reasons: Detergents, made up of molecules, in which branching is minimum, are preferred these days.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 4
Name the products obtained and the chemical equations for oxidation of ethanol to different stages.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 5
i)Explain the cleansing action of soaps.
ii)An organic compound A is a constituent of antifreeze. The compound on heating with oxygen forms another compound “B” that has a molecular formula C2H4O2. Identify the compound “A” and “B”. Write the chemical equation of the reaction that takes place to form the compound “B”.
HARD
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 6
How do acetic acid and ethyl alcohol react when warmed together in the presence of a small quantity of concentrated sulphuric acid? Write the chemical equation for the reaction taking place.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 7
Compound “X” is a symmetrical gaseous hydrocarbon. Its empirical formula is CH2. “X” decolourises bromine water.
It forms monochloro addition product “Y” with gaseous HCI. Molecular weight of “Y” is 64.5. Identify the compounds “X” and “Y”. Write the chemical reaction of “X” with bromine water and HCl gas.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 8
An organic compound “X” that is sometimes used as anti-freeze has the molecular formula C2H6O. “X” on oxidation gives a compound “Y”, which gives effervescence with baking soda solution. What can “X” and “Y” be? Write their structural formulae.
MEDIUM
10th CBSE
IMPORTANT
Core Science Chemistry>Chapter 4 - Carbon and its Compounds>EXERCISE 4C>Q 9
Acetic acid reacts with ethyl alcohol in the presence of con. H2SO4 producing a sweet-smelling compound.
For the reaction (i) Name the main product (ii) Write the chemical equation.