Welcome to the 9th Class Chemistry Chapter 03 MCQs Online Test. We are presenting you with top MCQ questions from the 9th Class Chemistry Chapter Periodic Table and Periodicity of Properties.
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9th Class Chemistry Chapter 03 MCQs with Answers
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MCQs Class 9 Chemistry with Answers
The purpose of these online MCQs tests is to help you evaluate your 9th Class Chemistry Chapter 03 MCQs. These Multiple Choice Questions (MCQs) will prepare you for your academic success in the 9th Class Exams. 9th Class Chemistry chapters includes Chapter 1 – Fundamentals of Chemistry, Chapter 2 – Structure of Atoms, Chapter 3 – Periodic Table and Periodicity of Properties, Chapter 4 – Structure of Molecules, Chapter 5 – Physical States of Matter, Chapter 6 – Solutions, Chapter 7 – Electrochemistry and Chapter 8 – Chemical Reactivity.
What are the Periodic Table and Periodicity of Properties?
In the context of chemistry and the periodic table, periodicity refers to trends or recurring variations in element properties with increasing atomic numbers. Periodicity is caused by regular and predictable variations in element atomic structure.
9th Class Chemistry Chapter 03 MCQs: Periodic Table and Periodicity of Properties
1. Shielding effect is greater in atoms with a greater number of:
2. There are total groups and periods in the modern periodic table:
(a) Seven, eight
(b) Eighteen, seven
(c) Eight, seventeen
(d) Sixteen, eight
3. If we move from left to right in a period, the value of ionization energy:
(a) Remains same
(d) Not effected
4. The ionization energy of sodium is:
(a) +495.8 kj/mol
(b) +594.8 kj/mol
(c) -495.8 kj/mol
(d) -594.8 kj/mol
5. It is the amount of energy released when an electron is added up in the outermost shell of an isolated gaseous atom:
(a) Shielding effect
(b) Electron affinity
(c) Electro negativity
(d) Ionization energy
6. Salts of sodium give:
(a) Bluish green
7. The half of distance between the nuclei of the two bonded atoms is referred as:
(a) Atomic size
(b) Atomic radius
(c) Ionic radii
(d) Both (a) and (b)
8. Sixth and seventh periods are called:
(a) Short period
(b) Normal period
(c) Long period
(d) Very long period
9. The d-block elements lie between the blocks:
10. Which one of the halogens has the highest electro-negativity?