The Periodic Table Exe-5C MCQs Chemistry Class-9 ICSE Selina Publishers

The Periodic Table Exe-5C MCQs Chemistry Class-9 ICSE Selina Publishers Solutions Chapter-5. Step By Step ICSE Selina Concise Solutions of Chapter-5 The Periodic Table with All Exercise including MCQs, Very Short Answer Type, Short Answer Type, Long Answer Type, Numerical and Structured/Application Questions Solved . Visit official Website CISCE for detail information about ICSE Board Class-9.

The Periodic Table Exe-5C MCQs Chemistry Class-9 ICSE Concise Selina Publishers

Board ICSE
Publications Selina Publication
Subject Chemistry
Class 9th
Chapter-5 The Periodic Table
Book Name Concise
Topics Solution of Exercise – 5C MCQs Answer type
Academic Session 2023-2024

Exercise – 5C MCQs Answer type

The Periodic Table Class-9 Chemistry Concise Solutions  

Page-99

(Choose the correct answer from the options given below).

1. In the periodic table, the elements of a same group have the same:

(i) Number of valence electrons
(ii) Mass number
(iii) Atomic number
(iv) Number of electrons

Answer:

(i) Number of valence electrons

2. The number of elements in the largest period of the periodic table is:

(i) 18
(ii) 8
(iii) 32
(iv) 42

Answer:

(iii) 32

3. Atomic number is a much more fundamental property of an element than its atomic mass. This was emphasised by:

(i) Bohr
(ii) Mosley
(iii) Mendeleev
(iv) Newland

Answer:

(ii) Mosley

4. All the members of group 15 have ……………. electrons in their outermost orbit.

(i) 3
(ii) 7
(iii) 5
(iv) 8
Answer:

(iii) 5

5. Which of the following statements is correct with respect to the elements — Na, Mg, Al, Si, P, S and Cl.

(i) Each element belongs to the same group.
(ii) Valency of each element is the same.
(iii) Each element belongs to the same period.
(iv) They are all metals.

Answer:

(iii) Each element belongs to the same period

6. Elements with 2 electrons in their outermost shells are known as :

(i) Alkali metals
(ii) Halogens
(iii) Alkaline earth metals
(iv) Inert gases

Answer:

(iii) Alkaline earth metals

7. Modern periodic table is based on:

(i) Atomic weight
(ii) Atomic number
(iii) Mass number
(iv) Molecular mass

Answer:

(ii) Atomic number

8. Elements which have their outermost orbits incomplete are:

(i) Transition elements
(ii) Noble gases
(iii) Inner transition elements
(iv) Representative elements

Answer:

(i) Transition elements, Inner transition elements, Representative elements.

9. The element with atomic number 16 is placed in the modern periodic table in:

(i) 2nd period and VI A group
(ii) 3rd period and IV A group
(iii) 3rd period and VI A group
(iv) 2nd period and IV A group

Answer:

(iii) 3rd period and VI A group

10. Typical elements are the elements of:

(i) IIIrd group
(ii) IIIrd period
(iii) IIrd period
(ic) IVth perio

Answer:

(ii) IIIrd period

11. The strongest reducing agents are the elements of group:

(i) Six
(ii) Seven
(iii) One
(iv) Two

Answer:

(iii) One

12. The most reactive non-metal is:

(i) Iodine
(ii) Oxygen
(iii) Fluorine
(iv) Chlorine

Answer:

(iii) Fluorine

—  : End of The Periodic Table Exe-5C MCQs Answer Class-9 ICSE Chemistry Solutions :–

Return to  Return to Concise Selina ICSE Chemistry Class-9 

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