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प्रश्न
Distinguish by a chemical test, ammonium sulphate and sodium sulphate.
उत्तर १
These salts can be distinguished by using KOH. When KOH is added to ammonium sulphate, ammonia gas is evolved. Whereas there is no evolution of ammonia gas in case of sodium sulphate.
उत्तर २
Ammonium sulphate with NaOH produces NH3↑
\[\ce{(NH4)2SO4 + 2NaOH ->[\Delta] Na2SO4 + 2H2O + 2NH3}\]
Meanwhile, sodium sulphate with NaOH does not produce ammonia gas.
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संबंधित प्रश्न
State the factors that influence the preferential discharge of ions at the electrodes.
Amongst the OH- ions and Br- ions which are likely to discharge first?
Classify the following substance:
Ammonium chloride
The following is an extract from metals in the service of man, Alexander and street /Pelican 1976': Alumina (aluminium oxide) has a very high melting point over 2000oC, so that I cannot readily be liquefied. However, conversion of alumina to aluminium and oxygen, by electrolysis, an occur when it is dissolved in some other substance.
(a) Which solution is used to react with bauxite as first step in obtaining pure aluminium oxide?
(b) The aluminium oxide for the electrolytic extraction of aluminium is obtained by heating aluminium hydroxide. Write the equation for this reaction.
(c) Name the element which serves both as the anode and the cathode in the extraction of aluminium.
(d) Write the equation for the reaction that occurs at the cathode during the extraction of aluminium.
(e) Write the equation for the reaction that occurs at the cathode during extraction of aluminium by electrolysis.
(f) Give the equation for the reaction that occurs at the anode when aluminium is purified by electrolysis.
Fill in the blank from the choices given below :
Electro covalent compounds have a _____ boiling point
Which of these will act as a non-electrolyte?
Give reasons why in the electroplating of an article with silver, the electrolyte sodium argentocynide solution is preferred over silver nitrate solution.
Identify the substance underlined in each of the following case :
he electrolyte used for electroplating an article with silver.
State the observation at the anode and at the cathode during the electrolysis of :
Copper sulphate solution using copper electrodes.
Classify the following substance:
Ammonium hydroxide
