Advertisements
Advertisements
प्रश्न
Is PbO2 a base or not? Comment.
Advertisements
उत्तर
Lead oxide is a metallic oxide that reacts with hydrochloric acid to produce lead chloride and water. However, it is excluded from the class of bases because chlorine is also produced.
\[\ce{PbO2 + 4HCl_{( aq)}-> PbCl2_{( aq)} + Cl2_{(g)} + 2H2O}\]
Thus, lead oxide is not a base.
संबंधित प्रश्न
The litmus paper or the litmus solution is obtained from ________ plant
(A) Moss
(B) Lichen
(C) Rose
(D) Hibiscus
What happens when an acid reacts with a metal?
Compounds such as alcohol and glucose also contain hydrogen but are not categorised as acids. Describe an activity to prove it.
Define an acid and a base. Give two examples of each.
What does a soda-acid type fire extinguisher contain? How does it work? Explain the working of a soda-acid fire extinguisher with the help of a labelled diagram.
Egg shell is made up of ____________.
What happens when nitric acid is added to egg shell?
In the following schematic diagram for the preparation of hydrogen gas as shown in the figure, what would happen if following changes are made?

- In place of zinc granules, same amount of zinc dust is taken in the test tube
- Instead of dilute sulphuric acid, dilute hydrochloric acid is taken
- In place of zinc, copper turnings are taken
- Sodium hydroxide is taken in place of dilute sulphuric acid and the tube is heated.
A sulphate salt of Group 2 element of the Periodic Table is a white, soft substance which can be moulded into different shapes by making its dough. When this compound is left in open for some time, it becomes a solid mass and cannot be used for moulding purposes. Identify the sulphate salt. Why does it show such a behaviour? Give the reaction involved.
Which acid is present in milk?
