1
mark questions:-
1. Name the type of bond formed when sharing of
electrons occurs.
2. How many valence electrons are there in valence
shell of carbon atom?
3. Define catenation.
4. What do you understand by unsaturated
compounds?
5. Why are unsaturated hydrocarbons more reactive than saturated hydrocarbons?
6. What is the difference in number of carbon and
hydrogen atoms between two successive members
of a homologous series?
7. What is the difference in molecular masses of
any two successive homologues?
8. Name the functional group present in following
compounds:-
(i) C2H5OH (ii) CH3COC2H5
(i) C2H5OH (ii) CH3COC2H5
9. Give the IUPAC name of the following compounds.
(a) CH3 −CH2 −Cl
(b) H −C = O
I
H
(a) CH3 −CH2 −Cl
H
10. Substitution reactions are given by which type
of hydrocarbons?
11. Name the type of hydrocarbon taking part in an
addition reaction.
12. Name the products obtained from the complete
combustion of saturated hydrocarbon.
13. Acetic acid is also known as glacial acid. Why?
14. Which gas evolved when sodium carbonate reacts
with ethanoic acid?
15. Name the catalyst commonly used in the process
of conversion of vegetable oils into fats.
16. Write the colour of flame produced by
unsaturated hydrocarbons on complete combustion.
17. Which acid is regarded as dehyderating agent?
18. What are hetro atoms? Give one example.
2 marks questions:-
19. Draw electron dot structure of CH4 and O2.
20. What is a homologous series? Write two main
features of homologous series.
21. Explain why saturated hydrocarbons give sooty
flame on incomplete combustion?
22. Differentiate between saturated and
unsaturated hydrocarbons giving one example of each.
23. Which of the following hydrocarbons undergoes
addition reactions & why :-
C2H6, C2H2, C3H8, C3H6
24. Write the chemical formula and structural
formula of:- (i) Benzene (ii)
Propanoic acid
25. Write names of following compounds as per
nomenclature:-
(i) CH3CH2COOH (ii) CH3CH2COCH
26. What are structural isomers? How many structural
isomers can you draw from Pentane?
27. What is hydrocarbon? Write the general formula
of the hydrocarbons :-
(i) Alkane (ii) Alkene (iii) Alkyne
28. What happens when a piece of sodium is dropped
into a test tube containing ethanol? Write the chemical equation also.
29. A hydrocarbon compound A is active ingredient
of wine and cough syrups. A on oxidation with
acidified K2Cr2O7 forms compound B. Identify the compound A and B and write the chemical equations involved.
30. What is hydrogenation? Write its industrial
application.
31. Which type of reaction takes place when
saturated hydrocarbons react with chlorine in presence of sunlight? Write the chemical equation if the
saturated hydrocarbon is methane(CH4).
32. What is scum? How is it formed?
33. A, B and C are members of a homlogous series,
there melting points are–1830 C,–1380 C and –1300 C respectively. Among these:-
(i) Which member will have least number of carbon atoms?
(ii) Which member will have maximum number of carbon atoms?
(i) Which member will have least number of carbon atoms?
(ii) Which member will have maximum number of carbon atoms?
34. What are esters? How are they formed?
3 marks questions:-
3 marks questions:-
35. Write the chemical formula and structure of
the following:-
(i) Cyclohexane (ii) Propanal (iii) Chlorobutane
(i) Cyclohexane (ii) Propanal (iii) Chlorobutane
36. Draw the electron dot structure of the
following:-
(i) C2H6 (ii) C2H4 (iii) C2H2
(i) C2H6 (ii) C2H4 (iii) C2H2
37. Giving chemical equations of the reactions
write what happens when:-
(i) Ethanol is heated at 443K with excess of concentrated sulphuric acid.
(ii) Conversion of oils (unsaturated hydrocarbon) into fats (saturated hydrocarbons)
(iii) Ethanoic acid reacts with sodium hydroxide.
(i) Ethanol is heated at 443K with excess of concentrated sulphuric acid.
(ii) Conversion of oils (unsaturated hydrocarbon) into fats (saturated hydrocarbons)
(iii) Ethanoic acid reacts with sodium hydroxide.
38. Draw three structural isomers butane.
39. Explain formation of micelles with the help of
suitable diagram?
40. Explain the following terms with related
chemical equations:-
(i) Dehydration
(ii) Esterification
(iii) Saponification
(i) Dehydration
(ii) Esterification
(iii) Saponification
41. Soap does not work effectively in hard water.
Explain why?
42. How can you obtain the following from pure
ethanol :-
(i) Ethene
(ii) Ethanoic acid
(iii) Ester
Write the chemical equations of the reactions.
(i) Ethene
(ii) Ethanoic acid
(iii) Ester
Write the chemical equations of the reactions.
43. Distinguish between addtion and substitution
reactions with suitable examples.
44. Differentiate between ethanol and ethanoic
acid on basis of following test:-
(i) Blue litmus test
(ii) Reaction with sodium bicarbonate
(iii) Sodium metal test.
(i) Blue litmus test
(ii) Reaction with sodium bicarbonate
(iii) Sodium metal test.
45. Give reasons for the following observations :–
(i) The element carbon forms a very large number of compound.
(ii) Air holes of a gas burner have to be adjusted when the heated vessels get blackened
by the flame.
(iii) Use of synthetic detergents cause pollution of water.
(i) The element carbon forms a very large number of compound.
(ii) Air holes of a gas burner have to be adjusted when the heated vessels get blackened
by the flame.
(iii) Use of synthetic detergents cause pollution of water.
46. What is the difference between combustion and
oxidation?
Under what condition an oxidation reaction can be cancelled as combustion? [Illustrate your answer with one example each.]
5 marks questions:-
Under what condition an oxidation reaction can be cancelled as combustion? [Illustrate your answer with one example each.]
5 marks questions:-
47. What
are soaps? Explain the mechanism of the cleaning action of soaps?
48. Soaps form scum (insoluble
substance) with hard water. Explain why? How this problem is
overcome by use of detergents?
49.Give one example of each of the following :–
(a) A carbon compound containing two double bonds.
(b) A molecule in which central atom is linked to three, other atoms.
(c) A compound containing both ionic and covalant bonds.
(d) An organic compound which is soluble in water.
(e) A carbon compound which burns with a sooty flame.
(a) A carbon compound containing two double bonds.
(b) A molecule in which central atom is linked to three, other atoms.
(c) A compound containing both ionic and covalant bonds.
(d) An organic compound which is soluble in water.
(e) A carbon compound which burns with a sooty flame.
50. Why is the conversion of ethanol to ethanoic acid considered an
oxidation reaction? [2011 (T-II)]
Read more topics:
Chapter – 4 Carbon and its Compounds - Points to
remember and Important questions paper
Naming of Hydrocarbons -No.1 Site For Learning Chemistry
CBSE ADDA: Short types Questions class 10 Carbon and its Compounds
10th Chemistry Carbon and its Compounds Notes-1
Chemistry X | Carbon and its Compounds | Short type important questions
Naming of Hydrocarbons -No.1 Site For Learning Chemistry
CBSE ADDA: Short types Questions class 10 Carbon and its Compounds
10th Chemistry Carbon and its Compounds Notes-1
Chemistry X | Carbon and its Compounds | Short type important questions
1 comment:
Post a Comment