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प्रश्न
Write the name and chemical formula of the simplest organic acid.
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उत्तर
The simplest organic acid is formic acid (methanoic acid) with the chemical formula HCOOH.
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संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
A student adds 2 mL of acetic acid to a test tube containing 2 mL of distilled water. He then shakes the test tube well and leaves it to settle for some time. After about 5 minutes he observes that in the test tube there is :
(A) a clear transparent colourless solution
(B) a clear transparent pink solution
(C) a precipitate settling at the bottom of the test tube
(D) a layer of water the layer of acetic acid
What is the common name of ethanoic acid?
Give the common name and IUPAC name of C2H5OH.
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.
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
Acetic acid is a typical acid. Write one equation in case of its reactions with a bicarbonate.
Name the substance used to change acetic acid to acetic anhydride?
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
State how the following conversions can be carried out:
Ethyl chloride to Ethyl alcohol
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
Rewrite the following statement by selecting the correct option.
The formula of ethanoic acid is _____________.
When sodium hydrogen carbonate is added to ethanoic acid, a gas evolves. Consider the following statements about the gas evolved.
- It turns lime water milky.
- It is evolved with brisk effervescence.
- It has a smell of burning sulfur.
- It is also a by-product of respiration.
CH3–CH2–CHO : propanal : : CH3–COOH : _______
Explain the following reaction with an example.
Saponification
Write the characteristics of ethanoic acid.
Which of the following substance produces brisk effervescence with baking soda solution?
Draw the structural diagram of:
Ethanoic acid
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
