Title 2. States of Matter.pdf ✅

STATES OF MATTER MATTER IN OUR SURROUNDINGS 01 Class 9th Science (Chemistry) (Practice Sheet) 1 What is a characteristic property of solids that differentiates them from liquids and gases? A. Fluidity B. Rigid structure C. Compressibility D. High thermal expansion 2 Which state of matter has molecules with the least compressibility and thermal expansion? A. Solids B. Liquids C. Gases D. Plasma 3 What property allows liquids to acquire the shape of a vessel? A. Rigidity B. Fluidity C. Compressibility D. Thermal expansion 4 What is the intermolecular distance range in gases? A. 10-9 – 10-7 cm B. 10-8 – 10-6 cm C. 10-7 – 10-5 cm D. 10-6 – 10-4 cm 5 What is the arrangement of molecules in liquids compared to solids? A. Regular and closely arranged B. Random and little sparsely arranged C. Random and more sparsely arranged D. Fixed and orderly arranged 6 How is matter classified on the basis of physical state? 7 Draw a cyclic figure to show interconversion of states and explain fusion, vaporisation, condensation, solidification and sublimation. 8 What is the fluidity of the state of matter? 9 What happens to the density of a substance as it changes from a solid to a liquid and then to a gas? 10 Explain the concept of thermal expansion and how it varies in solids, liquids, and gases. Page 1 Email: Phone No: Website: [email protected] +91 93299 65211 www.brisklearning.com Address: Office No. 605, CTS No. 658, Gayatri Bhuvan, A & B, Kandivali, Dattani Park, Thakur Village, Kandivali East, Mumbai, Maharashtra 400101