Advertisements
Advertisements
प्रश्न
Give any two uses of ethanoic acid.
Advertisements
उत्तर
Uses of ethanoic acid:
(1) Ethanoic acid is used in the preparation of plastics, dyes and pharmaceuticals.
(2) Dilute ethanoic acid (vinegar) is used as a food preservative, and as an appetiser in dressing food dishes.
APPEARS IN
संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
A student adds a spoon full of powdered sodium hydrogen carbonate to a flask containing ethanoic acid. List two main observations, he must note in his note book, about the reaction that takes place. Also write chemical equation foe the reaction.
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
What is the common name of ethanoic acid?
Draw the structure of butanoic acid.
Name the gas evolved when ethanoic acid is added to sodium carbonate. How would you prove the presence of this gas?
Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH3COOH, CH3OH, C2H5OH, HCOOH, CH3CHO
Give reasons for your choice.
When ethanoic acid reacts with sodium hydrogen carbonate, then a salt X is formed and a gas Y is evolved. Name the salt X and gas. Y Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.
The structural formula of an ester is :
Write the formula of the acid and the alcohol from which it is formed.
Acetic acid is a typical acid. Write one equation in case of its reactions with a carbonate.
Fill in the blank with appropriate word/words.
Vinegar is a solution of about ________per cent ________in water.
What type of compound is formed by the reaction between acetic acid and an alcohol?
Write a balanced chemical equation for the following:
A mixture of sodalime and sodium acetate is heated.
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?
Anita added a drop each of diluted acetic acid and diluted hydrochloric acid on pH paper and compared the colors. Which of the following is the correct conclusion?
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:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
