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प्रश्न
Explain the following term with an example.
Oxidant
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उत्तर
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.
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संबंधित प्रश्न
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
Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids.
Complete the following equation:
`CH_3 COOH + CH_2 H_5 OH` 
What happens when propanoic acid is warmed with methanol in the presence of a few drops of concentrated sulphuric acid? Write equation of the reaction involved.
propanol into propanoic acid?
Name the process in each case and write the equations of the reactions 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?
An organic compound A (molecular formula C2H4O2) reacts with Na metal to form a compound B and evolves a gas which burns with a pop sound. Compound A on treatment with an alcohol C in the presence of a little of concentrated sulphuric acid forms a sweet-smelling compound D (molecular formula C3H6O2). Compound D on treatment with NaOH solution gives back B and C. Identify A, B, C and
A student is studying the properties of acetic acid in his school laboratory. List two physical and two chemical properties which he must observe and note in his record book.
A student is studying the properties of acetic acid. List two physical properties of acetic acid he observes. What happens when he adds a pinch of sodium hydrogen carbonate to this acid? Write any two observations.
Under what conditions does ethane get converted to ethyl alcohol?
What is vinegar and glacial acetic acid?
What is thr boilng point of acetic acid?
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
Ester is a sweet-smelling compound.
Explain the following reaction with an example.
Esterification
Write the answers to the questions by observing the following figure.
- Write the chemical reaction shown in the figure above in the form of a balanced equation.
- Write the name of the gas coming out of the large test tube in the above chemical reaction.
- Why do small bubbles appear in the small test tube?
- What is the change in colour of lime water?
Ethanoic acid is also known as which of these?
A spatula full of sodium carbonate is taken in a test tube and 2 mL of dilute ethanoic acid is added to it.
Suggest a method of testing the gas liberated in the reaction.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
