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Science : Ch 05 – Periodic of Classification of Elements

This test is designed based on NCERT Syllabus for Class 10 Topics : Periodic of Classification of Elements

  • Each time random 15 questions will be displaced
  • So retake the quiz till you have mastered all the questions

1 / 15

An element X with atomic number 12 forms a compound with element Y with atomic number 17. The formula of the compound formed is:

2 / 15

Which of the following gives the accurate increasing order of the atomic radii of O, F and N?

3 / 15

Organise the following elements in the order of their decreasing metallic character Na, Si, Cl, Mg, Al:

4 / 15

Which among the following elements has the largest atomic radii?

5 / 15

Which of the following elements would lose an electron with ease?

6 / 15

Which of the following elements does not lose an electron with ease?

7 / 15

Which is not true about the noble gases?

8 / 15

Which among the following has larger size of atoms?

9 / 15

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

10 / 15

Modern Periodic Law States that

11 / 15

The valency of an element vary across a period

12 / 15

The number of Periods in the Modern Periodic Table are

13 / 15

The number of groups in the Modern Periodic Table

14 / 15

The atomic number of an element is 20, its electronic configuration.

15 / 15

Three elements B, Si and Ge are: Metalloids (d)

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