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प्रश्न
What are catalysts?
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उत्तर
Catalyst is a substance which increases the rate of a reaction without causing any disturbance to it.
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संबंधित प्रश्न
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
What is the common name of ethanoic acid?
propanol into propanoic acid?
Name the process in each case and write the equations of the reactions involved.
State any two uses of esters.
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.
What do you observe when acetic acid is added to sodium bicarbonate?
On adding 2 mL acetic acid to 2 mL of water in a test tube, it was observed that
(A) a clear and transparent solution is formed
(B) a white precipitate is formed almost immediately
(C) two separate layers were formed
(D) a colourless and odourless gas is evolved
Explain the following term with an example.
Oxidant
Why is Soda lime used not only NaOH?
State how the following conversion can be carried out:
Ethyl chloride to Ethene.
State how the following conversions can be carried out:
Ethene to Ethyl alcohol.
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
State the observation
When the gaseous product obtained by dehydration of ethyl alcohol is passed through bromine water.
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
Assertion (A): Esterification is a process in which a sweet-smelling substance is produced.
Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
A few drops of ethanoic acid were added to solid sodium carbonate. The observation made was that ______.
How is ethanol to ethanoic acid an oxidation reaction different from the reaction in which ethanol burns in the presence of oxygen?
