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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
In an experiment to study the properties of ethanoic acid, a student takes about 3 mL of ethanoic acid in a dry test tube. He adds an equal amount of distilled water to it and shakes the test tube well. After some time he is likely to observe that
(A) a colloid is formed in the test tube.
(B) the ethanoic acid dissolves readily in water.
(C) the solution becomes light orange.
(D) water floats over the surface of ethanoic acid.
Identify the term or substance based on the descriptions given below
Ice like crystals formed on cooling an organic acid sufficiently.
Complete the following equation:
\[\ce{CH3COOH + C2H5OH ->[Conc{.} H2SO4]}\]
What is the physical state of CH3COOH?
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
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.
Give the structural formulae of acetic acid.
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
Name the substance used to change acetic acid to acetic anhydride?
Why is pure acetic acid also known as glacial acetic acid?
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
Identify the term or substance based on the descriptions given below:
Hydrocarbon containing a triple bond used for welding purposes
Choose the correct alternative and rewrite the following:
Some acetic acid is treated with solid NaHCO3, the resulting solution will be _________________.
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.
Which of the following represents saponification reaction?
Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?
Name the oxidising agent used in the conversion of ethanol to ethanoic acid.
Write the chemical equation for the ethanol to ethanoic acid of an oxidation reaction.
Give the balanced chemical equation of the reaction.
Oxidation of ethanol by acidified potassium dichromate.
