CBSE Class 9 Science Atoms and Molecules Worksheet Set 06

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Practice Worksheet
CBSE Class 9 Science
Topic: Atoms and Molecules

 

Very Short Answer

Q1) Sample A contains one-gram molecules of oxygen molecules and sample B contains one mole of oxygen molecules. What is the ratio of the number of molecules in both the sample?
Ans: One gram molecules and one gram mole contain the same number of molecules ( 6.022 x 1023).Therefore, the ratio is 1:1
 
Q2) An element X has valency 3 while the element Y has valency 2. Write the formula of the compound between X and Y.
Ans: X2Y3
 
Q3) Identify the cations and anions in the following compound.
NH4Cl
Ans: NH4+, Cl-
 
Q4) An element X exhibits variable valencies 3 and 5. Write the formulae of the chlorides of the element.
Ans: XCl5 and XCl3
 
Q5) Give an example of trivalent cation and monovalent anion.
Ans: Trivalent cation Al3+, monovalent anion Cl-
 
 

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Exam Preparation Worksheet for Class 9 Science Chapter 03 Atoms and Molecules

Download Practice Sheet: Chapter 03 Atoms and Molecules (Class 9 Science)

Review targeted practice exercises for Class 9 Science Chapter 03 Atoms and Molecules. Curated to match official CBSE guidelines, these downloadable PDF sheets support daily revision and core concept reinforcement.

Concept Clarification for Chapter 03 Atoms and Molecules

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FAQs

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You can download the teacher-verified PDF for CBSE Class 9 Science Atoms and Molecules Worksheet Set 06 from StudiesToday.com. These practice sheets for Class 9 Science are designed as per the latest CBSE academic session.

Are these Science Class 9 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 9 Science Atoms and Molecules Worksheet Set 06 includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 9.

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Yes, we have provided detailed solutions for CBSE Class 9 Science Atoms and Molecules Worksheet Set 06 to help Class 9 and follow the official CBSE marking scheme.

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Daily practice with these Science worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 9 students get more marks in CBSE exams.

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