Advertisements
Advertisements
प्रश्न
Give the test that is used to detect borate radicals is qualitative analysis.
Advertisements
उत्तर
- Borax when heated with ethyl alcohol and concentrated H2SO4, produces volatile vapours of triethyl borate, which burns with green edged flame.
- \[\ce{\underset{Borax}{Na2B4O7} + \underset{(conc.)}{H2SO4} + 5H2O ->[\Delta]\underset{Sodium sulphate}{Na2SO4} + \underset{Orthoboric acid}{4H3BO3}}\]
- \[\ce{\underset{Orthoboric acid}{H3BO3} + \underset{Ethyl alcohol}{3C2H5OH}->\underset{Triethyl borate}{B(OC2H5)3} + 3H2O}\]
- The above reaction is used as a test for the detection and removal of borate radical \[\ce{(BO^3-_3)}\] in qualitative analysis.
APPEARS IN
संबंधित प्रश्न
Choose the correct option.
Haber’s process is used for preparation of _______
A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is a white crystalline solid and used for inorganic qualitative analysis.
Name the compound produced.
Ammonia is a good complexing agent. Explain.
Give the test that is used to detect borate radical is qualitative analysis.
Ammonia is a good complexing agent. Explain.
Give the test that is used to detect borate radical is qualitative analysis.
Give the reactions supporting the basic nature of ammonia.
A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is white crystalline solid and used for inorganic qualitative analysis.
Write the reaction that explains its formation.
Give the reactions supporting basic nature of ammonia.
A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is white crystalline solid and used for inorganic qualitative analysis.
Write the reaction that explains its formation.
Give the test that is used to detect borate radical is qualitative analysis.
Give the reactions supporting the basic nature of ammonia.
A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is a white crystalline solid and is used for inorganic qualitative analysis.
Write the reaction that explains borax formation.
Shravani was performing an inorganic qualitative analysis of a salt. To an aqueous solution of that salt, she added silver nitrate. When a white precipitate was formed. On adding ammonium hydroxide to this, she obtained a clear solution. Comment on her observations and write the chemical reactions involved.
Give the reactions supporting the basic nature of ammonia.
Give the reactions supporting basic nature of ammonia.
Give the reactions supporting basic nature of ammonia.
Give the reactions supporting the basic nature of ammonia.
Ammonia is a good complexing agent. Explain.
Give the reactions supporting basic nature of ammonia.
A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is white crystalline solid and used for inorganic qualitative analysis.
Write the reaction that explains its formation.
Give the test that is used to detect borate radical is qualitative analysis.
Give the test that is used to detect borate radical is qualitative analysis.
Give the reactions supporting basic nature of ammonia.
