Advertisements
Advertisements
Question
Explain the following term with an example.
Oxidant
Solution
The substances which can give oxygen to other substance are called oxidants or oxidizing agents.
E.g. Potassium permanganate (KMnO4) and potassium dichraomate (K2Cr2O7) in acidic or alkaline medium are commonly used oxidants.
APPEARS IN
RELATED QUESTIONS
The molecular formula of acetic acid is _________ .
(a) CH3COOH
(b) CH3 – CH3
(c) C6H6
(d) C2H4
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.
In order to study saponification reaction, we first prepare 20% solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is
(A) exothermic and the solution is alkaline
(B) endothermic and the solution is alkaline
(C) endothermic and the solution is acidic
(D) exothermic and the solution is acidic
A gas is liberated immediately with a brisk effervescence, when you add acetic acid to sodium hydrogen carbonate powder in a test tube. Name the gas and describe the test that confirms the identity of the gas.
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids.
Give the name and structural formula of one homologue of HCOOH.
What do you notice when acetic acid reacts with metals?
While studying saponification reactions, the following comments were noted down by the students :
(I) Soap is a salt of fatty acids.
(II) The reaction mixture is basic in nature.
(III) In this reaction heat is absorbed.
(IV) This reaction is not a neutralisation reaction.
Which of these are the correct comments ?
(A) I and III only
(B) I, II and III
(C) II, III and IV
(D) I and II only
How is ethyne prepared in the laboratory?
What is the main constituent of vinegar?
Why is pure acetic acid also known as glacial acetic acid?
Give reason for the following :
Ethyne is more reactive than ethane
Write the molecular formula of the given compound.
Ethanoic acid
Ethanoic acid turns ______ litmus to ______
Ethanoic acid is also known as which of these?
Ester is formed by the reaction between ______.
Which of the following substance produces brisk effervescence with baking soda solution?
When ethanoic acid is treated with NaHCO^ the gas evolved is ______.