Advertisements
Advertisements
Question
Answer the following question.
Identify the acid and the base from which sodium chloride is obtained. Which type of salt is it? When is it called rock salt? How is rock salt formed?
Solution
NaCl is obtained by the reaction between NaOH and HCl.
\[\ce{HCl + NaOH->NaCl + H2O}\]
NaCl is a neutral salt. It is known as rock salt in crystalline form. Rock salt is simply crystallized salt, also known as halite. It is the result of the evaporation of ancient oceans millions of years ago. Sometimes, pressure from deep inside the Earth forces up large masses of rock salt to form salt domes.
APPEARS IN
RELATED QUESTIONS
A solution turns red litmus blue, its pH is likely to be ______.
The indicator which produces a pink colour in an alkaline solution is:
(a) methyl orange
(b) turmeric paper
(c) phenolphthalein
(d) litmus paper
Why is it wrong to treat a wasp sting with baking soda solution?
Name the positive ion formed When an acid is dissolved in water.
Two acids ‘A’ and ‘B’ are given. Acid A gives one hydrogen ion per molecule of the acid in solution. Acid B gives two hydrogen ions per molecule of the acid in solution.
- Find out acid A and acid B.
- Which acid is called the King of Chemicals?
An acid is ______.
The Acid secreted in our stomach is ______.
______ contain one or more replaceable hydrogen atoms.
To Interpret:
CH4 and NH3, are not acids.
A metal 'M' on reacting with dilute acid liberates a gas 'G'. The same metal also liberates gas 'G' when reacts with a base.
- Write the name of gas 'G'.
- How will you test the presence of this gas?
- Write chemical equations for the reactions of the metal with (1) an acid and (2) a base.
