Advertisements
Advertisements
प्रश्न
Write the formulae of methanoic acid.
Advertisements
उत्तर
The formula of methanoic acid is HCOOH.
APPEARS IN
संबंधित प्रश्न
A student puts a drop of reaction mixture of a saponification reaction first a blue litmus paper and then on a red litmus paper. He may observe that:
(a) There is no change in the blue litmus paper and the red litmus paper turns white.
(b) There is no change in the red litmus paper and the blue litmus paper turns red.
(c) There is no change in the blue litmus paper and the red litmus paper turns blue.
(d) No change in colour is observed in both the litmus papers
Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>
What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4?
Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also write the names of all the substances involved in the process of esterification.
State any two uses of esters.
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
Give the structural formula of Acetic acid.
Write the molecular formulae and structure formula of ethanic acid?
What is vinegar and glacial acetic acid?
Name the first four members of alphatic carboxylic acid.
Ketone : –CO– : : Ester : _______
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?
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Which of the following represents saponification reaction?
Draw the structural diagram of:
Ethanoic acid
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 the chemical equation for the following:
Saponification Reaction
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
