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Question
A student adds 4 mL of acetic acid to a test tube containing 4 mL of distilled water. He then shakes the test tube and leaves it to settle. After about 10 minutes he observes:
(A) a layer of water over the layer of acetic acid
(B) a layer of acetic acid over the layer of water
(C) a precipitate settling at the bottom of the test tube
(D) a clear colourless solution
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Solution
Acetic acid forms a homogeneous solution with water.
The Correct Answer is D
RELATED QUESTIONS
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.
Complete the following chemical equations : C2H5OH + Na →
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
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
Explain the following term with example.
Reduction
Draw the structural formula of a compound with two carbon atoms in the following case:
An alcohol containing two carbon atoms.
Give reason for the following :
Ethyne is more reactive than ethane
CH3–CH2–CHO : propanal : : CH3–COOH : _______
A student while observing the properties of acetic acid would report that this smells like ______.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
