9th Class Chemistry Notes Chapter 13 Long Questions PDF - Laboratory and Practical Skills

Descriptive questions for Unit 13, Laboratory and Practical Skills, of the new 9th class Chemistry course. Each question carries its textbook exercise reference, and the answers are written at the length an annual paper question expects, with the working shown where a calculation is involved.

• Class: 9th (Matric Part 1)
• Subject: Chemistry, English Medium
• Unit 13: Laboratory and Practical Skills
• Question type: Descriptive, long answer questions
• Answer style: definitions, worked calculations and comparison tables under clear sub-headings
• Syllabus: New PECTAA syllabus for Punjab Boards, sessions 2025-26 and 2026-27
• Format: PDF, with the textbook figures and structures kept in

Ground covered by these descriptive answers:

• Hazards due to explosive chemicals, with picric acid and benzoyl peroxide as examples
• Hazards due to toxic chemicals such as mercury, benzene, chlorine and ammonia
• Five standard safety instructions for avoiding laboratory hazards
• Personal protective equipment, fume hoods and safe storage
• Warning signs and symbols, and the precaution each one calls for

Get the PDF from taleem360.com and use it alongside your textbook while you prepare this unit.