Advertisements
Advertisements
प्रश्न
Sodium hydroxide is termed an alkali while Ferric hydroxide is not because ______.
पर्याय
Sodium hydroxide is a strong base, while Ferric hydroxide is a weak base.
Sodium hydroxide is a base which is soluble in water while Ferric hydroxide is also a base but it is not soluble in water.
Sodium hydroxide is a strong base while Ferric hydroxide is a strong acid.
Sodium hydroxide and Ferric hydroxide both are strong base but the solubility of sodium hydroxide in water is comparatively higher than that of Ferric hydroxide.
उत्तर
Sodium hydroxide is termed an alkali while Ferric hydroxide is not because Sodium hydroxide is a base which is soluble in water while Ferric hydroxide is also a base but it is not soluble in water.
Explanation:
The bases that dissolve in water are known as alkalis. While Fe(OH)3 is not soluble in water, NaOH is only weakly so. NaOH is therefore an alkali, whereas Fe(OH)3 is not. All bases are alkalis, but not all alkalis are bases.
APPEARS IN
संबंधित प्रश्न
A student Prepared 20% sodium hydroxide solution in a beaker to study saponification reaction. Some observations related to this are given below :
(I) Sodium hydroxide solution turns red litmus blue
(II) Sodium hydroxide readily dissolves in water
(III) The beaker containing solution appears cold when touched from outside
(IV) The blue litmus paper turns red when dipped into the solution
The correct observations are :-
(A) I, II and IV
(B) I, II and III
(C) only III and IV
(D) only I and II
Explain by taking the example of hydrochloric acid and sodium hydroxide. Give equation of the chemical reaction which takes place. What is the special name of such a reaction?
During the electrolysis of a saturated solution of sodium chloride, where is:
chlorine formed?
During the electrolysis of a saturated solution of sodium chloride, where is:
hydrogen formed?
A student prepared 20% sodium hydroxide solution in a beaker containing water. The observations noted by him are given below.
I. Sodium hydroxide is in the form of pellets.
II. It dissolves in water readily.
III. The beaker appears cold when touched from outside.
IV. The red litmus paper turns blue when dipped into the solution.
The correct observations are:
(A) I, II, and III
(B) II, III and IV
(C) III, IV and I
(D) I, II and IV
Sodium hydroxide is used ____________.
NaOH is obtained by electrolysis of ___________.
The Salt Story
From: The New Indian Express 9 March 2021
The salt pans in Marakkanam, a port town about 120 km from Chennai are the third largest producer of salt in Tamil Nadu. Separation of salt from water is a laborious process and the salt obtained is used as raw materials for manufacture of various sodium compounds.
One such compound is Sodium hydrogen carbonate, used in baking, as an antacid and in soda acid fire extinguishers.
The table shows the mass of various compounds obtained when 1litre of sea water is evaporated.
| COMPOUND | FORMULA | MASS OF SOLID PRESENT /g |
| Sodium Chloride | NaCl | 28.0 |
| Magnesium Chloride | MgCl2 | 8.0 |
| Magnesium Sulphate | MgSO4 | 6.0 |
| Calcium Sulphate | CaSO4 | 2.0 |
| Calcium Carbonate | CaCO3 | 1.0 |
| TOTAL AMOUNT OF SALT OBTAINED | 45.0 | |
What is the saturated solution of Sodium Chloride called?
The industrial process used for the manufacture of caustic soda involves electrolysis of an aqueous solution of compound 'X'. In this process, two gases 'Y' and 'Z' are liberated. 'Y' is liberated at cathode and 'Z', which is liberated at anode, on treatment with dry slaked lime forms a compound 'B'. Name X, Y, Z and B.
Chlorine gas was prepared using electrolysis of brine solution. Write the chemical equation to represent the change. Identify the other products formed in the process and give one application of each.
