Class 10 Science Chapter 5 Periodic Classification of Elements MCQ Questions with Answer

Periodic Classification of Elements Class 10 MCQ is one of the best strategies to prepare for the CBSE Class 10 Board exam. If you want to complete a grasp concept or work on one’s score, there is no method except constant practice. Students can improve their speed and accuracy by doing more Periodic Classification of Elements class 10, which will help them all through their board test.

Periodic Classification of Elements Class 10 MCQ Questions for with Answers

Class 10 Science MCQ with answers are given here to chapter 5 Periodic Classification of Elements. These MCQs are based on the latest CBSE board syllabus and relate to the latest Class 10 Science syllabus. By Solving these Class 10 MCQs, you will be able to analyze all of the concepts quickly in the chapter and get ready for the Class 10 Annual exam.

Learn Periodic Classification of Elements Class 10 MCQ with answers pdf free download according to the latest CBSE and NCERT syllabus. Students should prepare for the examination by solving CBSE Class 10 Periodic Classification of Elements MCQ with answers given below.

Question 1. The pairs of elements with the following atomic numbers have the same chemical properties:     
a. 13 & 12
b. 3 &11
c. 4&24
d. 2 &1

Question 2. The period that contains only gaseous elements are:     
a. 1
b. 2
c. 3
d. 4

Question 3. The longest and the shortest periods are:     
a. 1&6
b. 2&6
c. 6 &1
d. 1&7

Question 4. The number of elements present in the 2nd, 3rd, 4th and 5th periods of the modern periodic table are:   
a. 2,8,8,18
b. 8,8,18,32
c. 8,8,18, 18
d. 8,18,18,32

Question 5. Which amongst the following represents the correct order of decreasing metallic character of elements Na, Si, Cl, Mg, Al     
a. Cl> Si> Al> Mg> Na
b. Na> Mg> Al> Si> Cl
c. Na> Si> Mg> Al> Cl
d. Al> Na> Si> Cl> Mg

Question 6. Which of the following are characteristics of isotopes of an element?     
a. Isotopes of an element have same atomic masses
b. Isotopes of an element have same atomic number
c. Isotopes of an element show same physical properties
d. Isotopes of an element have same chemical properties
i. A, c, d
ii. B, c, d
iii. B and c
iv. B and d

Question 7. Elements with atomic number 15 and mass number 31 is present in:   
a. Group 5 and period 4
b. Group5 and period 3
c. Group15 and period 3
d. Group15 and period 4

Question 8. Which of the following will form acidic oxide? An element with atomic number:     
a. 7 
b. 11
c. 21
d. 19

Question 9. Which of the following hydroxides are most basic:   
a. Be(OH)₂
b. Mg(OH)₂
c. Ca(OH)₂
d. Ba(OH)₂

Question 10. An element has 13 protons. The group and period to which it belongs:     
a. 3rd period and 13th group
b. 2nd period and 13th group
c. 3rd period and 3rd group
d. 2nd period and 3rd group

Question 11. Where would you locate an element with electronic configuration 2, 8,7 in the modern periodic table?    B
a. Group 7 and period 2
b. Group7 and period 3
c. Group 17 and period 3
d. Group17 and period 3

Question 12. Which of the given elements A, B , C, D and E with atomic numbers 2, 4, 8, 10 and 18 respectively belong to the same period?     
a. A, B, C
b. B,C,D
c. A,D,E
d. B,D,E

Question 13. Which of the following has most non metallic character:     
a. N
b. C
c. O
d. F

Question 14. Which of the following is the correct order of size:   
a. I+ >I- > I
b. I- >I > I+
c. I >I+ > Id.
I >I- > I+

Question 15. Which of the following is the correct order of size:   
a. Cl< F< Br< I
b. F< Cl< Br< I
c. I<Br< Cl< F
d. Br< I< Cl< F

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Question 16. The lightest metal is :     
a. Li
b. Na
c. K
d. Mg

Question 17. Which of the following elements would lose an electron easily: 
a. K b. Na
c. Ca
d. Mg

Question 18. Cl, Br I, if this is a Dobereiner’s triad and the atomic masses of Cl and I are 35.5 and 127 respectively the atomic mass of Br is   
(1) 162.5
(2) 91.5
(3) 81.25
(4) 45.625

Question 19. Which of the following elements would accept an electron readily:
a. F
b. Cl
c. Br
d. I

Question 20. The most metallic element in the fourth period is:     
a. Ca
b. K
c. S
d. P

Question 21. According to Mendeleev’s periodic law, thev properties of elements are a periodic function of their 
(1) Atomic number
(2) Atomic masses
(3) Atomic volumes
(4) Atomic sizes

Question 22. The alkali metals are in which group of the periodic table ?   
(1) Group 1
(2) Group 2
(3) Group 3
(4) Group 4

Question 23. Which of the following hydroxides is most basic ?   
(1) Be(OH)₂
(2) Ba(OH)₂
(3) Ca(OH)₂
(4) Mg(OH)₂

Question 24. Which of the following elements will form acidic oxide ?   
(1) Sodium
(2) Magnesium
(3) Aluminium
(4) Sulphur

Question 25. Which pair of elements of the following sets is likely to have similar chemical behaviour ?   
(1) Sodium and aluminium
(2) Argon and potassium
(3) Boron and germanium
(4) Nitrogen and phosphorus

Question 26. Gradual addition of electronic shells in the noble gases causes a decrease in their 
(1) Ionisation energy
(2) Atomic radius
(3) Boiling point
(4) Density

Question 27. “The properties of the elements are periodic function of their atomic numbers”. The statement was given by   
(1) N. Bohr
(2) J.W. Dobereiner
(3) D.I. Mendeleev
(4) H.G.J. Moseley

Question 28. In the periodic table, the metallic character of elements     
(1) decreases from left to right and down the group
(2) decreases from left to right and increases down the group
(3) increases from left to right and down the group
(4) increases from left to right and decreases down the group

Question 29. Which of the following oxides is amphoteric in nature ? 
(1) CaO
(2) CO₂
(3) SiO₂
(4) SnO₂

Question 30. Which of the following elements has the least nonmetallic character ?   
(1) Fluorine
(2) Chlorine
(3) Bromine
(4) Iodine

Question 31. Why are the elements lithium, sodium and potassium called alkali metals ?   
(1) Because they reacts with water to form alkali
(2) Because they form acidic oxides
(3) Because they are present in first group
(4) Because they are less reactive in nature

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