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प्रश्न
Write names and formulae of hydrocarbons containing a single and a double bond (one example for each). Give one characteristic chemical property of each.
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उत्तर
Methane is a hydrocarbon which has a single bond. Its formula is CH4.
The characteristic chemical property of methane is the substitution reaction. It is a reaction in which one or more hydrogen atoms are replaced by some other atoms.
Chemical equation:
Ethene is a hydrocarbon containing a double bond. Its formula is C2H4.
The characteristic chemical property of ethene is the addition reaction. It is a reaction in which unsaturated compound (ethene) is combined with another substance to form a single product (saturated compound).
Chemical equation:
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संबंधित प्रश्न
How can ethanol and ethanoic acid be differentiated on the basis of their physical properties?
Fill in the blanks from the choices given within brackets:
The compound formed when ethanol reacts with sodium is____ (sodium ethanoate, sodium ethoxide, sodium propanoate).
Draw the structures for the following compounds:
Propanal
Draw the structures for the following compound:
Butanal
Name one liquid carbon compound which is being used as an additive in petrol in some countries.
When ethanol is heated with concentrated sulphuric acid at 170°C, it gets converted into ethene. In this reaction, concentrated sulphuric acid acts as:
(a) oxidising agent
(b) catalyst
(c) dehydrating agent
(d) reducing agent
State the method of preparation of ethanol by hydrolysis of ethene.
What is meant by a functional group in carbon compounds?
How will you bring about following conversions:
(a) Methane to methanol
(b) Ethane to ethanol (acetaldehyde)
(c) Methane to methanoic acid
Write a balanced chemical equation for the following:
Ethanol reacts with sodium at room temperature.
Convert ethanol into ethene using a solid dehydrating agent. Give only a balanced equation.
Find the odd one out and explain:
Write any two physical properties of Ethanol.
Ethanol reacts with sodium and forms two products. These are
Ethene is formed when ethanol at 443 K is heated with excess of concentrated sulphuric acid. What is the role of sulphuric acid in this reaction? Write the balanced chemical equation of this reaction.
Name the compound formed when ethanol is heated at 443 K in the presence of conc. \[\ce{H2SO4}\] and draw its electron dot structure.
State the role of conc. \[\ce{H2SO4}\] in the reaction.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
