Matric Part 1/9th Class Chemistry Chapter 3 Short Question With Answer for Unit 3 Periodic Table and Periodicity of Properties

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9th Class Chemistry Chapter 3 Online Preparation
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Online Short Questions For Chapter 3 "9th Class Chemistry English Medium Chapter 3 Preparation "

Try The Short Questions For 9th Class Chemistry English Medium Chapter 3 Preparation

  • Total Questions10

  • Available Sets4

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Chemistry (New Book) - 9th Class Chemistry English Medium Chapter 3 Preparation

Question # 1

Define electron affinity with an example.

  • Ans 1: Electron affinity is defined as the amount of energy released when an electron is added in the outermost shell of an isolated gaseous atom.
    Example:
    The first electron affinity of chlorine is -349kJmole-²
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Prepare Complete Set Wise Questions For Chapter 3 "9th Class Chemistry English Medium Chapter 3 Preparation "

9th Class Chemistry English Medium Chapter 3 Preparation - Set 1

Question # 1

Define electron affinity with an example.

  • Ans 1: Electron affinity is defined as the amount of energy released when an electron is added in the outermost shell of an isolated gaseous atom.
    Example:
    The first electron affinity of chlorine is -349kJmole-²
Submit

9th Class Chemistry English Medium Chapter 3 Preparation - Set 2

Question # 1

Describe Ionization energy.

  • Ans 1: The ionization energy is the amount of energy required to remove the most loosely bound electron from the valence shell of an isolated gaseous atom.
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9th Class Chemistry English Medium Chapter 3 Preparation - Set 3

Question # 1

Write down drawbacks of Mendeleev's periodic table?

  • Ans 1: 1-In some cases element of higheratomic masses are placed before those having lower atomic masses.
    2- No attempt has been made to place metals and non-metals separately in it.
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9th Class Chemistry English Medium Chapter 3 Preparation - Set 4

Question # 1

What do you mean by group and periods in the periodic table?

  • Ans 1: The Horizontal rows in periodic table called periods and vertical columns in the periodic table are called group.
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Chemistry
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9th class Chemistry Chapter 3 Preparation

Here you can prepare 9th chemistry chapter 3 online Short Questions Preparation (Unit 3 Periodic Table and Periodicity of Properties). Click the button for 100% free full practice test.

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