Test-MCQ Class 10-NCERT -Science-Chapter 5-Test-2

1. Which one of the following depicts the correct representation of atomic radius (r) of an atom?

2. Which of the following statement(s) about the modern periodic table are incorrect?

(i) The elements in the modern periodic table are arranged on the basis of their decreasing atomic numbers.

(ii) The elements in the modern periodic table are arranged on the basis of their increasing atomic masses.

(iii) Isotopes are placed in adjoining group(s) in the periodic table.

(iv) The elements in the modern periodic table are arranged on the basis of their increasing atomic number.

3. The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?

4. Arrange the following elements in the order of their decreasing metallic character Na, Si, Cl, Mg, Al.

5. Which of the following set of elements is written in order of their increasing metallic character?

6. Which one of the following does not increase while moving down the group of the periodic table?

7. The elements X, Y and Z are shown in a portion of periodic table. What would be the representations of ionic forms of X and Z respectively?

8. which of the following elements will form an acidic oxide?

9. what type of oxide would Eka-aluminium form?

10. The diagram given below shows the position of elements in a portion of the periodic table. Ionic compound is formed between ………. and ………

11. Element X forms a chloride with formula, XCl₂, which is a solid with a high melting point. X would most likely to be in the same group of the periodic table as. 

12. The adjacent diagram represents the arrangement of the atoms of an element (having valency = 4) forming giant covalent network.

Identify the heavy metal which belongs to same group as the element discussed above.

13. Arrange the elements, represented by alphabets p, q, r, s and t in the above shown outline of periodic table, in increasing order of their valency.

14. The diagram given  represents outline of the periodic table. The alphabets p, q, r, s and t represent elements. Which one of the following pairs of alphabets represents elements which consists of same number of shells in their atom?