Class 10 Science Chapter 5 MCQ
Class 10 Science Chapter 5 MCQ (Multiple Choice Questions) of Periodic Classification of Elements. Revise all the chapter here in the form of MCQ Online tests. All the MCQs are taken from NCERT books only and answer as well as explanation are given below each question.After completing the chapter from textbooks, these MCQs are very helpful for the preparation of school tests and final board exams.
Class 10 Science Chapter 5 MCQ for 2020-2021
|Chapter: 5||Multiple Choice Questions (MCQ) Tests|
Class 10 Science Chapter 5 MCQ with Answers
MCQ tests practice for class 10 science is given below. Here, you can practice chapter 5 of class 10 science with important MCQs related to NCERT Textbook. Class 10 Science Chapter 5 MCQs are given below with answers and explanation.
Which of the following set of elements is written in order of their increasing metallic character?
The element with atomic number 14 is hard and forms acidic oxide and a covalent halide. To which of the following categories does the element belong?
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
Read the following sentences carefully, and choose the incorrect one(s):
Which one of the following does not increase while moving down the group of the periodic table?
Which of the following statement is or are correct?
Where would you locate the element with electronic configuration 2, 8 in the Modern Periodic Table?
Consider the following statements and choose the incorrect one:
Which of the following statement(s) about the Modern Periodic Table are incorrect?
In a science quiz competition, Simran are asked a question where she had to choose the statement which was/were incorrect?
why did Mendeléev select Oxygen and Hydrogen to test the chemical properties of elements?
Mendeléev selected hydrogen and oxygen to test the chemical properties of elements as they are very reactive and formed compounds with most elements.
What were the limitations of Mendeleev’s Periodic Law?
1. Isotopes of all elements posed a challenge to Mendeleev’s Periodic Law.
2. The atomic masses do not increase in a regular manner in going from one element to the next. So it was not possible to predict how many elements could be discovered between two elements — especially when we consider the heavier elements.
3. No proper place assigned to Hydrogen.
What is modern periodic law?
The modern periodic law states that Properties of elements are a periodic function of their atomic number.
What happen to atomic radius of atoms when we move from left to right in a period?
The atomic radius decreases in moving from left to right along a period. This is due to an increase in nuclear charge which tends to pull the electrons closer to the nucleus and reduces the size of the atom.
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