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प्रश्न
Ketone : –CO– : : Ester : _______
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उत्तर
Ketone : –CO– : : Ester : –COO–
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संबंधित प्रश्न
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
While studying saponification reaction, a student measures the temperature of the reaction mixture and also finds its nature using blue/red litmus paper. On the basis of his observations the correct conclusion would be
(A) the reaction is exothermic and the reaction mixture is acidic.
(B) the reaction is endothermic and the reaction mixture is acidic.
(C) the reaction is endothermic and the reaction mixture is basic.
(D) the reaction is exothermic and the reaction mixture is basic.
For preparing soap in the laboratory we require an oil and a base. Which of the following combinations of an oil and a base would be best suited for the preparation of soap?
(a) Castor oil and calcium hydroxide
(b) Turpentine oil and sodium hydroxide
(c) Castor oil and sodium hydroxide
(d) Mustard oil and calcium hydroxide
How esters are prepared ?
Complete the following chemical equations :CH3COOH + Na2CO3 →
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
What type to compound is CH3COOH?
What is the physical state of CH3COOH?
Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also write the names of all the substances involved in the process of esterification.
An organic acid X is a liquid, which often freezes during winter time in cold countries, having the molecular formula C2H4O2. On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet smell is formed.
(a) Identify X and Y. Also write their formulae showing the functional group present in them.
(b) Write a chemical equation for the reaction involved.
Write the names of the first three members of the carboxylic acid series.
Give the structural formulae of acetic acid.
Write the important uses of acetic acid.
Write a balanced equation for the following:
Write the equation for the preparation of ethylene from ethyl alcohol.
Draw the structural formula of a compound with two carbon atoms in the following case:
An alcohol containing two carbon atoms.
Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
What are catalysts?
Write the characteristics of ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
