Chapter 4 | Periodicity of Elements | Class 9

MCQS of Periodicity of Elements of Chapter 4 Class IX

1.________Classified the known elements into, metal, non-metals and their derivatives.

(a)  Ibne-Sina

(b) Al-Razi

(c) Al-Beruni

(d) None of These

2. Dobereiner arranged the similar elements into group of three called .......

(a) Triads

(b) Octaves

(c) Rows

(d) Group

3. Newlands made a law of ..... 

(a) Triads

(b) Octaves

(c) Rows

(d) Group

4. Newlands arranged elements in order of increasing.........

(a) Atomic Masses

(b) Atomic Number

(c) Both

(d) None of These

5. According to Mendeleev`s periodic law the properties of the elements are periodic functions of their....

(a) Atomic Masses

(b) Atomic Number

(c) Both

(d) None of These

6. Mendeleev arranged the elements in horizontal ......and vertical ......

(a) Columns - Rows

(b) Rows - Columns

(c) Both

(d) None of These 

7. There are total ......periods in periodic table

(a) Six

(b) Five

(c) Three

(d) Seven

8. In modern periodic table the elements are arranged in ascending order of their 

(a) Atomic Mass

(b) Atomic Number

(c) Both

(d) None of These

9. The horizontal rows in periodic table are called......

(a) Column

(b) Group

(c) Periods

(d) None of These

10. The vertical  column in periodic table are called......

(a) Rows

(b) Group

(c) Periods

(d) None of These

11. First period consist of 2 elements .........

(a) Helium and Lithum

(b) Hydrogen and Helium

(c) Hydrogen and Lithum

(d) None of These

12. Second and third period are called short periods containing .....elements each

(a) Ten

(b) Nine

(c) Eight

(d) Seven

13. fourth and fifth period are called long periods containing .....elements each

(a) Fifteen

(b) Twenty

(c) Eighteen

(d) Sixteen

14. In fourth period there are 8  normal elements and 10 .........

(a) Radio active elements

(b) Non metal elements

(c) Transition elements

(d) None of These

15. _________ are metals and usually form coloured compound

(a) Radio active elements

(b) Noble Gases 

(c) Transition elements

(d) None of These

16. Sixth period is the longest period containing .....elements

(a) Thirty

(b) Thirty two

(c) Thirty Five

(d) Thirty Six

17. Sixth period contain 8 normal elements , 10 outer transition elements and ......inner transition elements.

(a) Ten

(b) Fifteen

(c) Fourteen

(d) Sixteen

18.. ____ period is incomplete period

(a) First

(b) Third

(c) Fourth

(d) Seventh

19. Inner transition elements of group VI are called......

(a) Lanthanides

(b) Actinides

(c) Radio active

(d) None Of These

20.  Inner transition elements of group VII are called......

(a) Lanthanides

(b) Actinides

(c) Radio active

(d) None Of These

21.  Actinides are ..........

(a) Metallic Elements

(b) Non- Metallic Elements

(c) Radio active Elements

(d) None Of These

22. Alkali means.....

(a) Salt former

(b) Ashes

(c) Both

(d) None Of These

23. Elements of group IA are called.....

(a) Alkali Metals

(b) Alkali Earth Metals

(c) Boron or aluminium family 

(d) Carbon and Silicon family

24. Elements of group IIA are called.....

(a) Alkali Metals

(b) Alkali Earth Metals

(c) Boron or aluminium family 

(d) Carbon and Silicon family

25. Elements of group III A are called.....

(a) Alkali Metals

(b) Alkali Earth Metals

(c) Boron or aluminium family 

(d) Carbon and Silicon family

26. Elements of group IVA are called.....

(a) Alkali Metals

(b) Alkali Earth Metals

(c) Boron or aluminium family 

(d) Carbon and Silicon family

27. Elements of group VA are called.....

(a) Nitrogen Family

(b) Oxygen Family

(c) Boron or aluminium family 

(d) Carbon and Silicon family

28. Elements of group VIA are called.....

(a) Nitrogen Family

(b) Oxygen Family

(c) Boron or aluminium family 

(d) Carbon and Silicon family

29. Elements of group VIIA are called.....

(a) Nitrogen Family

(b) Oxygen Family

(c) Halogen Family

(d) Noble Gases

30. Elements of group VIIIA are called.....

(a) Nitrogen Family

(b) Oxygen Family

(c) Halogen Family

(d) Noble Gases

31. Elements of group IA contain ......electron in their outer most shell.

(a) 1

(b) 2

(c) 3

(d) 4

32. Elements of group IIA contain ......electron in their outer most shell.

(a) 1

(b) 2

(c) 3

(d) 4

33. Elements of group IIIA contain ......electron in their outer most shell.

(a) 1

(b) 2

(c) 3

(d) 4

34. Elements of group IVA contain ......electron in their outer most shell.

(a) 1

(b) 2

(c) 3

(d) 4

35. Elements of group VA contain ......electron in their outer most shell.

(a) 4

(b) 5

(c) 6

(d) 7

36.  Elements of group VIA contain ......electron in their outer most shell.

(a) 4

(b) 5

(c) 6

(d) 7

37.  Elements of group VIIA contain ......electron in their outer most shell.

(a) 4

(b) 5

(c) 6

(d) 7

38. Boron is ....

(a) Metallic 

(b) Non- Metallic 

(c) Radio active 

(d) Metalloid

39. Halogen means.....

(a) Salt former

(b) Ashes

(c) Both

(d) None Of These

40. Halogen exist in ........molecules

(a) diatomic

(b) monoatomic

(c) Both

(d) None Of These

41. The heaviest elements of group IVA is....

(a) Florine

(b) Oxygen

(c) Bismuth

(d) Lead

42. The heaviest elements of group VA is....

(a) Florine

(b) Oxygen

(c) Bismuth

(d) Lead

43. Sodium and potassium belongs to group......

(a) IA

(b) IIA

(c) IIIA

(d) IVA

44. Calcium and Magnesium belongs to group.....

(a) IA

(b) IIA

(c) IIIA

(d) IVA

45. Aluminum belongs to group.....

(a) IA

(b) IIA

(c) IIIA

(d) IVA

46. Carbon and Silicon belongs to group 

(a) IA

(b) IIA

(c) IIIA

(d) IVA

47. Nitrogen and Phosphorus belongs to group 

(a) VIA

(b) VIIA

(c) IVA

(d) VA

48. Oxygen and Sulphur belongs to group 

(a) VIA

(b) IIA

(c) IIIA

(d) VA

49. Chlorine and Bromine belongs to group 

(a) VIA

(b) VIIA

(c) IVA

(d) VA

50. Helium and Xenon belongs to group 

(a) VIIIA Noble gases

(b) VIIA

(c) IVA

(d) VA