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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 is forming acidic oxide. Its most expected position in the modern periodic table is:

2 / 15

The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belongs to the identical group?

3 / 15

In Mendeleev’s periodic table, gaps were left for the elements to be discovered later. Which of the subsequent element found a place in the periodic table later?

4 / 15

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

5 / 15

Which among the following elements has the largest atomic radii?

6 / 15

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

7 / 15

Which of the following are the characteristics of isotopes of an element?

  1. Isotopes of an element have the same atomic masses.
  2. Isotopes of an element have the same atomic number
  3. Isotopes of an element show the same physical properties.
  4. Isotopes of an element show the same chemical properties.

8 / 15

Arrange the following elements in sequence of their increasing non-metallic character Li, O, C, Be and F.

9 / 15

Arrange these elements in decreasing order of their atomic radii

10 / 15

Arrange these elements in increasing order of their atomic radii

11 / 15

Arrange these elements in increasing order of their atomic radii

12 / 15

Which of the following is the outermost shell for elements of period 2

13 / 15

The valency of an element vary across a period

14 / 15

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

15 / 15

Arrange the following elements in the order of their increasing non-metallic character Li, O, C, Be and F

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