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प्रश्न
What are hydrocarbons? Explain with examples.
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उत्तर
Hydrocarbon is a compound of hydrogen and carbon. Examples for hydrocarbons are methane (CH4), ethane (C2H6) and ethyne (C2H2). All these compounds are hydrocarbons as they are only made of hydrogen and carbon elements which is evident from their respective molecular formulae.
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संबंधित प्रश्न
Select saturated hydrocarbons from the following: C3H6; C5H10; C4H10; C6H14; C2H4
Draw the structures for Bromopentane*
Draw the structures for Hexanal.
Draw the structures of possible isomers of butane, C4H10.
Give reason why the carbon compounds generally have low melting and boiling points.
An alkyne has seventy five carbon atoms in its molecule. The number of hydrogen atoms in its molecule will be ______.
A diamond-toothed saw is usually used for cutting ______.
The pair of elements which exhibits the property of catenation is ______.
You are given the following molecular formulae of some hydrocarbons:
Which formula represents benzene?
You are given the following molecular formulae of some hydrocarbons:
C5H8; C7H14; C6H6; C5H10; C7H12; C6H12
Which three formulae can represent cyclic hydrocarbons?
Draw two possible isomers of the compound with molecular formula C3H6O and write their names.
Give the electron dot structures of the above two compounds.
How many electrons are there in the outermost orbit of carbon?
The number of isomers of pentane is ______.
Intake of small quantity of methanol can be lethal. Comment.
Match the reactions given in Column (A) with the names given in column (B).
| Column (A) | Column (B) | ||
(a) |
`"CH"_3"OH" + "CH"_3"COOH"overset("H"^+)(->) "CH"_3"COOCH"_3 + "H"_2"O"` | (i) | Addition reaction |
| (b) | `"CH"_3 = "CH"_2 + "H"_2 overset("Ni")(->)"CH"_3 - "CH"_3` | (ii) | Substitution reaction |
| (c) | `"CH"_4 + "Cl"_2overset("Sunlight")(->)"CH"_3"Cl" + "HCl"` | (iii) | Neutralisation reaction |
| (d) | `"CH"_3"COOH" + "NaOH" -> "CH"_3"COONa" + "H"_2"O"` | (iv) | Esterification reaction |
How many isomers are possible for the compound with the molecular formula C4H8? Draw the electron dot structure of branched-chain isomer.
How will you prove that C4H8 and C5H10 are homologues?
Recognise the carbon chain type of the following:
\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - C - H}\\|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}
\end{array}\]
Recognise the carbon chain type of the following:
\[\begin{array}{cc}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\\\ce{H - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\\\ce{H}\phantom{...}\ce{}\phantom{.....}\ce{H}\\
\ce{H - C - H}\\
|\\
\ce{H}
\end{array}\]
Draw the structure of propanone.
