This 9th class chemistry chapter 3 test is an original ExamPaperDesk practice paper for Chapter 3, Chemical Bonding. Every question is printed in both English and Urdu, so English medium and Urdu medium students can use the same paper. It carries 36 marks: 10 multiple-choice questions with a bubble sheet, 10 short questions of which you attempt any eight, and 2 detailed questions. An answer key for the MCQs is given at the end.
Before you attempt it, revise from the Class 9 Chemistry Chapter 3 textbook PDF and work through the Chapter 3 exercise questions. The Class 9 Chemistry section of ExamPaperDesk is organised into notes, test papers, online papers, guess papers, past papers and textbook PDFs, and you can already browse our Class 9 Chemistry notes and textbook PDFs.
How to Use This Chapter 3 Test
Print the paper or open it on your phone, close your book and attempt all three sections in one sitting, as you would in an exam. Fill in the bubble sheet for Section A, then check your MCQs against the answer key on the last page. For the short and detailed questions, compare your answers with the chapter in your textbook and note any topic you need to revise again.
Download the 9th Class Chemistry Chapter 3 Test PDF
What the Chapter 3 Test Covers: Chemical Bonding
The paper is set across the whole of Chapter 3 rather than one exercise, so it is a fair check of whether the chapter is finished. Questions are drawn from:
- Why atoms combine, and the octet and duplet rules.
- Ionic bonding, with the formation of sodium chloride as the standard example.
- Covalent bonding, including single, double and triple bonds, and polar and non-polar covalent bonds.
- Coordinate covalent bonding, with the ammonium ion.
- Metallic bonding and the electron sea model.
- Intermolecular forces, including hydrogen bonding, and how bonding determines physical properties.
Facts You Need Before Attempting It
Most of the marks in Chemical Bonding hang on a small number of statements being exactly right:
- An ionic bond forms by complete transfer of electrons; a covalent bond forms by sharing.
- In a coordinate covalent bond both shared electrons come from the same atom.
- Ionic compounds conduct electricity when molten or dissolved, but not when solid, because the ions must be free to move.
Where Marks Go Missing in This Chapter
- Describing an ionic bond as sharing electrons.
- Saying ionic solids conduct electricity in the solid state.
- Forgetting that both electrons in a coordinate bond come from one atom.
Frequently Asked Questions
What is the difference between ionic and covalent bonding?
An ionic bond forms when electrons are transferred completely from one atom to another, giving oppositely charged ions. A covalent bond forms when two atoms share a pair of electrons.
Is the answer key included?
An answer key for the multiple-choice section is printed at the end of the paper. The written sections should be marked against your textbook and the solved chapter notes.
Related Class 9 Chemistry Resources
Continue with Chapter 2 test and Chapter 4 test. Everything for the subject is collected on the Class 9 Chemistry page, including the solved chapter notes and the rest of the Class 9 Chemistry test papers.