Materials: Metals and Non-Metals

Materials: Metals and non-metals Worksheet-4

31. The colour of Copper sulphate (CuSO₄.5H₂O) is _____.

A. Red                B. Blue               C. Green             D. Yellow

32. Which of the following is very reactive non metal?

A. Sodium                                      B. Potassium

C. Carbon                                       D. Phosphorous

Materials: Metals and non-metals Worksheet-5

1. Non-metals can not be drawn into wires. Why?

2. Complete the following equation :

Zn + HCl → ___ + ___

3. Give two examples of noble metals.

4. Give the name of one non-metal which is a good conductor of electricity.

5. Which is the most abundant metal on the earth's crust?

6. Which metal can be extracted from magnetite?

Materials: Metals and non-metals Worksheet-6

21. The product/s formed on reaction between sulphur and hot concentrated nitric acid is /are_______

22. Arrange the following metals in the order of their decreasing chemical activity: magnesium, potassium, iron, gold.

23. Can copper displace iron from iron sulphate solution? Give reasons.

24. (Platinum/iron) is the member of-the family of noble metals.

25. Gold dissolves in (aqua regia/aqueous solution of silver nitrate).

26. Silver tarnishes due to (nitrogen oxides/hydrogen sulphide) in the air.