Question

Define
1. Malleability
2. Ductility
3. Metalloids

Short answer questions
1. Mention the physical properties of metals.
2. Why metals are used in ringing bells?
3. What happen when copper vessel is exposed to moist air for long? Explain by writing chemical equation.
4. Why is sodium metal stored in kerosene?
5. Non metals like phosphorus are stored in water. Why?
6. Name the gas which is produced on reaction of metals with acids and bases. How can we test the presence of this gas.
(Hint: Hydrogen, can be tested by pop sound test) write in elaborated way.
7. Differentiate between metals and non metals.
8. What is displacement reaction? Explain with the help of an example.
9. Zinc sulphate forms a colourless solution in water. Will you observe any change in its colour on adding copper into it? Why or why not?

Answer 1

Answer:

rajeet so we shall meet tomorrow at 5 in the evening? right?

where r u from? in which class u study?