Advertisements
Advertisements
प्रश्न
Name the functional group present in an organic compound which gives brisk effervescence with NaHCO3.
Advertisements
उत्तर
Carboxylic acid group (-COOH) is the functional group which gives brisk effervescence with NaHCO3.
APPEARS IN
संबंधित प्रश्न
Write three different chemical reactions showing the conversion of ethanoic acid to sodium ethanoate. Write balanced chemical equation in each case. Write the name of the reactants and the products other ethanoic acid and sodium ethanoate in each case.
Complete the following chemical equations :CH3COOH + Na2CO3 →
Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid
Give the common names and IUPAC names of the following compounds of CH3COOH.
Draw the structure of butanoic acid.
Describe a test for carboxylic acid.
Name two oxidising agents which can oxidise ethanol to ethanoic acid.
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.
What do you notice when acetic acid reacts with alcohol?
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
In an experiment to study the properties of acetic acid a student takes about 2 mL of acetic acid in a dry test tube. He adds about 2 mL of water to it and shakes the test tube well. He is likely to observe that:
(A) the acetic acid dissolves readily in water
(B) the solution becomes light orange
(C) water floats over the surface of acetic acid
(D) acetic acid floats over the surface of water
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
How is ethyne prepared in the laboratory?
Define glacial acetic acid?
State how the following conversions can be carried out:
Ethyl chloride to Ethyl alcohol
Write the molecular formula of the given compound.
Sodium ethanoate
Ester is a sweet-smelling compound.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Draw the structural diagram of:
Ethanoic acid
