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प्रश्न
Choose the correct alternative and rewrite the following:
Acetic acid ..................
विकल्प
is insoluble in water
turns blue litmus red
is pale yellow in colour
none of the above
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उत्तर
Acetic acid turns blue litmus red.
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संबंधित प्रश्न
While studying saponification reaction, a student measures the temperature of the reaction mixture and also finds its nature using blue/red litmus paper. On the basis of his observations the correct conclusion would be
(A) the reaction is exothermic and the reaction mixture is acidic.
(B) the reaction is endothermic and the reaction mixture is acidic.
(C) the reaction is endothermic and the reaction mixture is basic.
(D) the reaction is exothermic and the reaction mixture is basic.
Give the common names and IUPAC names of the following compounds of HCOOH.
Name one chemical compound which can be used to distinguish between ethanol and ethanoic acid.
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
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?
Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:
Which compound is added to alcohol to denature it?
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.
The next higher homologue of ethanoic acid is ______.
What do you observe when acetic acid is added to sodium bicarbonate?
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
Which of the following observations is true about dilute solution of acetic acid?
(A) It smells like vinegar and turns red litmus blue
(B) It smells like onion and turns blue litmus red
(C) It smells like orange and turns red litmus blue
(D) It smells like vinegar and turns blue litmus red
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
How is ethyne prepared in the laboratory?
Write a fully balanced equation for the folowing case:
Acitic acid is warmed with ethanol in the presence of concentrated sulpheric acid.
The functional group present in acetic acid is ______.
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
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.
Bubbles are seen in the test tube during the preparation of lime water.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
