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प्रश्न
Explain the following term with example.
Reduction
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उत्तर
A chemical reaction in which a substance gains hydrogen or loses oxygen is called a reduction reaction.
E.g. In the following reaction, ethylene (ethene) is reduced to ethane.
\[\ce{\underset{\text{Ethylene}}{H2C = CH2} ->[H2][Pt/Ni] \underset{\text{Ethane}}{CH3CH3}}\]
संबंधित प्रश्न
A student adds a few drops of ethanoic acid to test tubes X, Y and Z containing aqueous solutions of sodium chloride, sodium hydroxide and sodium carbonate, respectively. If he now brings a burning splinter near the mouth of the test tubes immediately after adding ethanoic acid in each one of them, in which of the test tube or test tubes the flame will be extinguished?
(A) X and Y
(B) Y and Z
(C) X and Z
(D) only Z
How esters are prepared ?
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
What is the common name of ethanoic acid?
Give the common name and IUPAC name of C2H5OH.
Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?
What type to compound is CH3COOH?
Name the product formed and give the appropriate chemical equation for the following:
Sodium reacting with ethyl alcohol.
Give the structural formulae of acetic acid.
What is glacial acetic acid?
Under what conditions does ethane get converted to ethyl alcohol?
Draw the structural formula of a compound with two carbon atoms in the following case:
An alcohol containing two carbon atoms.
Why is pure acetic acid also known as glacial acetic acid?
Give reason for the following :
Ethyne is more reactive than ethane
Explain the following reaction with an example.
Saponification
Bubbles are seen in the test tube during the preparation of lime water.
Shristi heated Ethanol with a compound A in presence of a few drops of concentrated sulphuric acid and observed a sweet smelling compound B is formed. When B is treated with sodium hydroxide it gives back Ethanol and a compound C.
- Identify A and C
- Give one use each of compounds A and B.
- Write the chemical reactions involved and name the reactions.
Name the oxidising agent used in the conversion of ethanol to ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
