STANDARD TEN PART I & II CHAPTER : 7 Metals and Non-Metals
0 votes, 0 avg


Metals and Non-Metals

1 / 15

An element X is soft and can be cut with the help of a knife. It is very reactive to air and cannot be kept open in the air. It reacts vigorously with water. Identify the element from the following:

2 / 15

Which of the following alloys contains a non-metal as one of its constituents?

3 / 15

Galvanisation is a method of protecting steel and iron from rusting by coating them with a thin layer of

4 / 15

Which of the following pairs of reactants will go undergo a displacement reaction?

5 / 15

Which among the following is the most abundant metal found in the earth’s crust?

6 / 15

Which of the following pairs will give displacement reactions?

7 / 15

An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be

8 / 15

Which of the following represent the correct order of decreasing reactivity?

9 / 15

In the given reaction, Al2O3 + NaOH → ……X…… + H2O
What is element X?

10 / 15

In electrolytic refining, the cathode is made up of

11 / 15

The sulphide ores are converted into oxides by heating strongly in the presence of excess air. This process is known as

12 / 15

The metal which is liquid at room temperature is

13 / 15

Bauxite is an ore of

14 / 15

The number of protons in an atom of an element A is 19 then, the number of electron in its ion A+ is:

15 / 15

The non-metal which is liquid at room temperature is:

Your score is