मराठी

Distinguish by a chemical test, ammonium sulphate and sodium sulphate. - Chemistry

Advertisements
Advertisements

प्रश्न

Distinguish by a chemical test, ammonium sulphate and sodium sulphate.

फरक स्पष्ट करा

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.

shaalaa.com

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.

shaalaa.com
Electrolytes
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 13: Practical Work - Exercise 13 [पृष्ठ २२९]

APPEARS IN

सेलिना Concise Chemistry [English] Class 10 ICSE
पाठ 13 Practical Work
Exercise 13 | Q 8.4 | पृष्ठ २२९

संबंधित प्रश्‍न

Complete the following by selecting the correct option from the choices given:

The divalent metal whose oxide is reduced to metal by electrolysis of its fused salt is __________. (Al/Na/Mg/K)


Give appropriate scientific reasons for During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes.


Name a salt which is a weak electrolyte.


Al+3 ,Cu+2 ,Na+ ,Zn+2 ions are present in aqueous solution, such that the concentration of ions is same, write the order of discharge of ions.


Explain how electrolysis is an example of Redox reaction.


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.


The following is a sketch of an electrolytic cell used in the extraction of aluminium:

  1. What is the substance of which the electrodes A and B are made?
  2. At which electrode (A or B) is aluminium formed?
  3. What are the two aluminium compounds in the electrolyte C?
  4. Why is it necessary for electrode B to be continuously replaced?

Correct the following statement:

Lead bromide conducts electricity.


Fill in the blank from the choices given below :
A molecule of _____ contains a triple bond.


Give reasons why although copper is a good conductor of electricity, it is a non-electrolyte.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×