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Chapter 10: Problem 33

(i) Ethyne (ii) Ethene (iii) Ethane (iv) Propyne (v) Propene (vi) Propane

Short Answer

Expert verified
Question: Provide the molecular formula and structure for each of the following hydrocarbons: ethyne, ethene, ethane, propyne, propene, and propane. Answer: 1. Ethyne has a molecular formula of C2H2, with a structure of H-C≡C-H. 2. Ethene has a molecular formula of C2H4, with a structure of H2C=CH2. 3. Ethane has a molecular formula of C2H6, with a structure of CH3CH3. 4. Propyne has a molecular formula of C3H4, with a structure of H-C≡C-CH3. 5. Propene has a molecular formula of C3H6, with a structure of H2C=CH-CH3. 6. Propane has a molecular formula of C3H8, with a structure of CH3CH2CH3.

Step by step solution

01

Molecular Formula of Ethyne

Ethyne consists of two carbon atoms and two hydrogen atoms, which is a member of the alkynes group. The molecular formula for ethyne is C2H2.
02

Structure of Ethyne

Ethyne has a triple bond between the two carbon atoms. The structure of ethyne is H-C≡C-H.
03

Molecular Formula of Ethene

Ethene consists of two carbon atoms and four hydrogen atoms, which is a member of the alkenes group. The molecular formula for ethene is C2H4.
04

Structure of Ethene

Ethene has a double bond between the two carbon atoms. The structure of ethene is H2C=CH2.
05

Molecular Formula of Ethane

Ethane consists of two carbon atoms and six hydrogen atoms, which is a member of the alkanes group. The molecular formula for ethane is C2H6.
06

Structure of Ethane

Ethane has a single bond between the two carbon atoms with each carbon atom bonded to three hydrogen atoms. The structure of ethane is CH3CH3.
07

Molecular Formula of Propyne

Propyne consists of three carbon atoms and four hydrogen atoms, which is a member of the alkynes group. The molecular formula for propyne is C3H4.
08

Structure of Propyne

Propyne has a triple bond between the first and second carbon atoms. The structure of propyne is H-C≡C-CH3.
09

Molecular Formula of Propene

Propene consists of three carbon atoms and six hydrogen atoms, which is a member of the alkenes group. The molecular formula for propene is C3H6.
10

Structure of Propene

Propene has a double bond between the first and second carbon atoms. The structure of propene is H2C=CH-CH3.
11

Molecular Formula of Propane

Propane consists of three carbon atoms and eight hydrogen atoms, which is a member of the alkanes group. The molecular formula for propane is C3H8.
12

Structure of Propane

Propane has a single bond between three carbon atoms with each carbon atom bonded to two or three hydrogen atoms. The structure of propane is CH3CH2CH3.

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Most popular questions from this chapter

Since unsaturated hydrocarbons are reactive they decolourize reddish brown bromine water by forming additions compound by addition reaction and not by substitution reaction.

Aluminium carbide on hydrolysis produces methane.

\(\mathrm{C}_{4} \mathrm{H}_{6}\) corresponds to general molecular formula \(\mathrm{C}_{\mathrm{n}} \mathrm{H}_{2 \mathrm{n}-2} .\) which possesses one triple bond.

Saturated hydrocarbons (methane) cannot decolourize red-coloured solution of bromine in \(\mathrm{CCl}_{4}\).

One mole of acetylene requires 2 moles of hydrogen to give ethane. Two moles of hydrogen corresponds to \(4 \mathrm{~g}\).
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