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Answer:
16
Explanation:
the right answer between C and H
ANSWER:-
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6.In which group the following compounds —OH is the functional group?
Correct Answer:— As alcohol is mainly the functional group which is written as —OH .And when we name any compounds , then the Ol from the last is added to any compounds at last .So the correct Answer is Option (b) Butanol.
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7.Identify the unsaturated compounds from the following.
Correct Answer: Unsaturated carbons refers to the hydrocarbon which have two or three bonds between them.These groups of bond is also known as alkene and alkyne groups. In the given option there is only two unsaturated carbons I.e.Propene and propyne .Thus the correct option is option (d) I.e (ii) and (iii).
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8.Pentene has molecular formula C5 H12 .If has
Correct answer: First to understand the bonds between then we should draw a structural formula of pentene.
H H H H H
| | | | |
H—C—C—C—C—C—H
| | | | |
H H H H H
As we will count these bonds then we will found that there are 16 bonds between them.
So option (c) is the correct answer.
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9.Carbon forms four covalent bonds by sharing its four valence electron with four univalent atoms e.g hydrogen .After the formation of four bonds ,carbon attains the electronic configuration of
Correct answer:- As carbon has atomic number 6 so if it attains 4 more electron for stability it will attains the electronic configuration of neon i,e 2,8.
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10.The name of the compounds CH3—CH2—CHO is
Correct answer : As aldhyde groups has CHO as functional groups ,So the correct answer is Propanal .Thus Option (a) is correct.