Periodic Classification of Elements MCQs Mock Test of 10th Class Science

Welcome to your Periodic Classification of Elements MCQs Mock Test of 10th Class Science

1. 
Q1- Which out of them has the biggest radii?

2. 
Q2- Vertical columns are called as –

3. 
Q3- Which of the following gives the correct order of atomic radii of O, F and N?

4. 
Q4- How many groups are there in the periodic table?

5. 
Q5- Which of the following, in their outermost shell has 2 valence electrons?

6. 
Q6- Which group was added in Mendleev’s periodic table?

7. 
Q7- Element X forms the chloride with the formula XCl2 ,which is a solid with a high melting point. X is most likely to be in the same group of periodic table as –

8. 
Q8- What is the special name given to the 17th group?

9. 
Q9- Which set out of them shows the correct sequence of metallic characters?

10. 
Q10- Chalcogens are ?

11. 
Q11- On moving from left to right in a periodic table, size of an atom ?

12. 
Q12- Atomic mass is equal to the sum of ____.

13. 
Q13- Which of the following elements will form acidic oxide?

14. 
Q14- Name the most electronegative element of Periodic table ?

15. 
Q15- Which statement is correct for left to right movement in periodic table?

16. 
Q16- Electron affinity is ____.

17. 
Q17- In periodic table, Helium is placed at ___

18. 
Q18- Ionisation energy is measured in –

19. 
Q19- The number of electrons in valence shell is equal to –

20. 
Q20- Out of Mg and Al which has higher ionisation energy?

21. 
Q21- Write valency of Iron ?

22. 
Q23- Upto which element, the law of octaves was found to be applicable –

23. 
Q24- According to Mendeleev’s Periodic law, the elements were arranged in Periodic table according to –

24. 
Q25- In Mendeleev’s Periodic table, gaps were left for many elements. Pick any one out of them.

25. 
Q26- What relation do Ar and Ca have?

26. 
Q27- Isotopes possess –

27. 
Q28- On which factor does ionisation energy depend?

28. 
Q29- Pick out the odd one –

29. 
Q30- Which is biggest in size –

30. 
Q31- Which out of them is not a halogen?

31. 
Q32- The standard element chosen for relative atomic mass is __.

32. 
Q33- Electronegativity depends upon ?

33. 
Q34- The order of ionisation of alkali group follows which order?

34. 
Q35- Most electronegative element in group 2 is __.

35. 
Q36- Which of the given elements A,B,C,D and E with atomic numbers 2,3,7,10 and 30 belong to the same period?

36. 
Q37- The elements A,B,C,D,E have atomic numbers 9, 11, 17, 12and 13. Which elements belong to the same group?

37. 
Q38- Where would you locate the element with electronic configuration 2,8 in modern periodic table?

38. 
Q39- An element which is an essential constituent of all organic compounds belongs to ___.

39. 
Q40- Which one will have the maximum number of valence electrons ?

40. 
Q41- What type of oxide would eka-Aluminium form ?

41. 
Q42- The element with atomic number 14 is hard and forms acidic oxide and a covalent halide . To which of the category does it belong?

42. 
Q43- The law of octaves is given by ___.

43. 
Q44- The modern periodic table is given by ____.

44. 
Q45- Which element was not known when Mendeleev proposed the classification?

45. 
Q46- Three elements B,Si and Ge are ___.

46. 
Q47- Arrange the following elements in order of their increasing non metallic character Li,O,C,Be ,F?

47. 
Q48- Arrange the following elements in order of their increasing metallic character Na,Si,Cl,Mg,Al ?

48. 
Q49- Which of them doesn’t loose electrons easily?

49. 
Q50- Which will loose electron easily?

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