A hydrocarbon has a molecular formula as $C_{6} H_{12}$ . It does not react with hydrogen to give $C_{6} H_{14}$ nor does it react with chlorine to give $C_{6} H_{12} C l_{2}$ . The hydrocarbon $C_{6} H_{12}$ is _____.

1. a saturated hydrocarbon
2. an unsaturated hydrocarbon
3. an open chain hydrocarbon
4. a cyclo-alkane.

(1) & (2)

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(3) & (4)

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(4) & (2)

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(1) & (4)

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Solution

The correct option is D (1) & (4)
$C_{n} H_{2 n}$ is the formula for an alkene or a cycloalkane. As the given hydrocarbon does not react with hydrogen or chlorine it cannot be an alkene.
Hence it is saturated and a cycloalkane.

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Similar questions

Q. An optically active hydrocarbon X has molecular formula

C_{6} H_{12}

, X on catalytic hydrogenation given optically inactive

C_{6} H_{14}

, X could be:

Q. Give the name and structural formula of:
(i) a saturated hydrocarbon
(ii) an unsaturated hydrocarbon with a double bond.

Q. A hydrocarbon

C_{5} H_{10}

does not react with chlorine in dark but gives a single monochloro compound

C_{5} H_{9} C l

in bright sunlight. Identify the hydrocarbon.

Q. A hydrocarbon (X) of the formula

C_{6} H_{12}

does not react with bromine water but reacts with the bromine in presence of light, forming compound (Y). Y on treatment with alc.

K O H

gives compound (Z) which on ozonolysis gives (T) of the formula

C_{6} H_{10} O_{2}

. T reduces Tollens's reagent which give compound (W) on acidification. W gives iodoform test and after acidification produces compound (U) which when heated with

P_{2} O_{5}

forms a cyclic anhydride (V).

(a) What are hydrocarbons? Explain with examples.
(b) Explain the meaning of saturated and unsaturated hydrocarbons with two examples each.
(c) Give the names and structural formulae of one saturated cyclic hydrocarbon and one unsaturated cyclic hydrocarbon.
(d) Give one example of a hydrocarbon, other than pentane, having more than three isomers.
(e) How many isomers of the following hydrocarbons are possible?
(i) $C_{3} H_{8}$ (ii) $C_{4} H_{10}$ (iii) $C_{5} H_{12}$ (iv) $C_{6} H_{14}$

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A hydrocarbon has a molecular formula as C6H12. It does not react with hydrogen to give C6H14 nor does it react with chlorine to give C6H12Cl2. The hydrocarbon C6H12 is _____. 1. a saturated hydrocarbon 2. an unsaturated hydrocarbon 3. an open chain hydrocarbon 4. a cyclo-alkane.

The correct option is D (1) & (4)CnH2n is the formula for an alkene or a cycloalkane. As the given hydrocarbon does not react with hydrogen or chlorine it cannot be an alkene. Hence it is saturated and a cycloalkane.

The correct option is D (1) & (4)
$C_{n} H_{2 n}$ is the formula for an alkene or a cycloalkane. As the given hydrocarbon does not react with hydrogen or chlorine it cannot be an alkene.
Hence it is saturated and a cycloalkane.