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Questions
What is an oxidising agent?
Explain the term Oxidising agent with example.
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Solution 1
An oxidising agent is a reactant which readily transfers oxygen atoms to another substance by reducing itself in the process.
Solution 2
The substances which can give oxygen to other substances are called oxidant or oxidizing agents.
E.g. Potassium permanganate (KMnO4) and potassium dichromate (K2Cr2O7) in acidic or alkaline medium is commonly used oxidants.
RELATED QUESTIONS
A student takes about 6 ml of distilled water in each of the four test tubes P, Q, R and S. He then dissolves an equal amount of four different salts namely, sodium chloride in 'P', potassium chloride in 'Q', calcium chloride in 'R' and magnesium chloride in 'S'. Next, he then adds 10 drops of soap solution to each test tube and shakes its contents. The test tubes in which scum (insoluble substance) is formed with soap are:
(A) P and Q
(B) Q and R
(C) R and S
(D) Q and S
Complete the following chemical equations:
C2H5OH+CH3COOH`("conc."H_2SO_4)/`>
You have four test tubes, A, B, C and D containing sodium carbonate, sodium chloride, lime water and blue litmus solutions respectively. Out of these the material of which test tube/ test tubes would be suitable for the correct test of acetic/ethanoic acid?
(a) only A
(b) A and B
(c) B and C
(d) A and D
When you add a few drops of acetic acid to a test-tube containing sodium bicarbonate powder, which one of the following is your observation?
(A) No reaction takes place
(B) A colourless gas with pungent smell is released with brisk effervescence
(C) A brown coloured gas is released with brisk effervescence
(D) Formation of bubbles of a colourless and odourless gas
Name the following:
The distinctive reaction that takes place when ethanol is treated with acetic acid.
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
Write the name and chemical formula of the simplest organic 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?
Describe a test for carboxylic acid.
What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4?
What will you observe when dilute ethanoic acid and dilute hydrochloric acid are put on universal indicator paper, one by one? What does it show?
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
A neutral organic compound is warmed with some ethanoic acid and a little of conc. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?
The structural formula of an ester is :
Write the formula of the acid and the alcohol from which it is formed.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate.
Write the names of the first three members of the carboxylic acid series.
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
Name the compound formed when acetic acid and ethanol react together.
What do you observe when acetic acid is added to sodium bicarbonate?
Explain the following term with an example.
Oxidant
How is ethyne prepared in the laboratory?
Name the following:
A toxic alcohol
What is thr boilng point of acetic acid?
Name the first four members of alphatic carboxylic acid.
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.
- Identify X, Y and Z
- Write the structural formula of X and Y.
- What type of compound is P?
- Name the above reaction.
- If compounds X and Y both have 2 carbon atoms. Write the reaction.
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.
Write the molecular formula of the given compound.
Ethanoic acid
Give a chemical reaction in which a catalyst is used.
Which of the following represents saponification reaction?
The reaction between acetic acid and sodium carbonate is shown in the following figure.
Answer the questions with the help of a diagram.
- Which gas does come out as effervescence in the big test tube?
- What is the colour change in the lime water present in the small test tube?
- Write the related reaction.
Write an equation showing saponification.
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.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
