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

MCQ | Class 10 Science Chapter 5 | Periodic Classification of Elements Set A

Check the below NCERT MCQ Questions for Class 10 Science Chapter 5 Periodic Classification of Elements with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Periodic Classification of Elements Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Objective Question | Science Class 10 Chapter 5

NCERT Solutions Class 10 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	10th
Subject:	Science
Chapter:	5
Chapters Name:	Periodic Classification of Elements
Medium:	English

Class 10th Science Book | Objective Type Questions

You can refer to NCERT Solutions for Class 10 Science Chapter 5 Periodic Classification of Elements to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Periodic Classification of Elements | Class 10 Science | NCERT Solutions

Q1.	Which of the following statements about the Modern Periodic Table is correct?
	A. It has 18 horizontal rows known as Periods
	B. It has 7 vertical columns known as Periods
	C. It has 18 vertical columns known as Groups
	D. It has 7 horizontal rows known as Groups

Ans: It has 18 vertical columns known as Groups

Q2.	Modern Periodic law is based upon:
	A. Number of neutrons
	B. Number of electron
	C. Atomic number
	D. Atomic mass

Ans: Atomic number

Q3.	In Mendeleev’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the periodic table later ?
	A. Germanium
	B. Chlorine
	C. Oxygen
	D. Silicon

Ans: Germanium

Q4.	Which of the following set of elements is written in order of their increasing metallic character?
	A. Na Li K
	B. C Q N
	C. Mg Al Si
	D. Be Mg Ca

Ans: Be Mg Ca

Q5.	The non-metals are present:
	A. On the right hand side of the periodic table.
	B. In the middle of the periodic table.
	C. In the centre of the periodic table.
	D. On the left hand side of the periodic table.

Ans: On the right hand side of the periodic table.

Q6.	An element has 12 protons. The group and period to which this element belongs to is
	A. 2nd group, 3rd period
	B. 2nd group, 2nd period
	C. 3rd group, 2nd period
	D. 3rd group, 3rd period

Ans: 2nd group, 3rd period

Q7.	Which one of the following statements is not correct about the trends in the properties of the elements of a group on going down in a group?
	A. The chemical reactivity of metals increases.
	B. The metallic character of elements increases.
	C. The size of the atom increases.
	D. The valence electrons increase.

Ans: The valence electrons increase.

Q8.	An element X combines with oxygen to form an oxide XO. This oxide is electrically conducting. Write the formula of the compound formed when X reacts with chlorine.
	A. XCl₃
	B. XCl
	C. XCl₂
	D. XCl₅

Ans: XCl₂

Q9.	An element ‘A’ belongs to the third period and group 16 of the Periodic Table. Find out the valency of A.
	A. Valency = 6
	B. Valency = 2
	C. Valency = 1
	D. Valency = 3