2. Acids,Bases and Salts

2. Acids,Bases and Salts

4 Maths Exercise Solutions

You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
2.1 Understanding the Chemical Properties of Acids and Bases, Question No.1
You have been provided with three test tubes. One of them contains distilled water and the other two contain an acidic solution and a basic solution, respectively. If you are given only red litmus paper, how will you identify the contents of each test tube?
Why should curd and sour substances not be kept in brass and copper vessels?
2.1 Understanding the Chemical Properties of Acids and Bases, Question No.2
Why should curd and sour substances not be kept in brass and copper vessels?
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
2.1 Understanding the Chemical Properties of Acids and Bases, Question No.3
Which gas is usually liberated when an acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.
2.1 Understanding the Chemical Properties of Acids and Bases, Question No.4
Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the compounds formed is calcium chloride.