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(a) If both Assertion and Reason are correct and Reason is the correct
explanation of Assertion.
(b) If both Assertion and Reason are correct, but Reason is not the correct
explanation of Assertion.
(c) If Assertion is correct but Reason is incorrect.

(d) If Assertion is incorrect but Reason is correct.
(e) If Assertion & Reason both are incorrect.

Subjective-

Q5. Assertion : Carbon shows maximum catenation property in the periodic
table.
Reason : Carbon has small size and thus, forms strong C - C bond.

[ U+Av ] (1mark)

Q.6.Write the name and molecular formula of 2nd and the 3rd member of
homologous series whose first member is methane. [ A+Av ] (3mark)

Q.7. Write the formula and structure of next homologue of each of the
following
a.C2H4
b.C4H6[ A+Av ] (3mark)

Q.8. Write the electron dot structure of ethene and ethane molecule
[ A+Av ] (3mark)

Q.9. List any three characteristics of homologous series. [ U+Av ] (3mark)

Q10.:(a)What are hydrocarbons? Write the general formula of (i) saturated
hydrocarbons (ii) unsaturated hydrocarbons and draw the structure of one
hydrocarbon of each type.
(b) You are given balls and stick model of six carbon atoms and fourteen
hydrogen atoms and sufficient number of sticks. In how many ways one can join
the models of six carbon atoms and fourteen hydrogen atoms to form different
molecules of C6H14.

[ A+Av ] (5mark)

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