Jhara Roy Solutions for Chapter: Physical and Chemical Changes, Exercise 3: SUMMATIVE ASSESSMENT
Jhara Roy Science Solutions for Exercise - Jhara Roy Solutions for Chapter: Physical and Chemical Changes, Exercise 3: SUMMATIVE ASSESSMENT
Attempt the practice questions on Chapter 6: Physical and Chemical Changes, Exercise 3: SUMMATIVE ASSESSMENT with hints and solutions to strengthen your understanding. Interactive Science 7 solutions are prepared by Experienced Embibe Experts.
Questions from Jhara Roy Solutions for Chapter: Physical and Chemical Changes, Exercise 3: SUMMATIVE ASSESSMENT with Hints & Solutions
Crystallisation is a physical change.
Brass is an alloy of copper and iron.
Ultraviolet radiations from the sun cause skin cancer.
Name the gas that comes out when baking soda is mixed with vinegar. (Oxygen/Carbon dioxide)
What kind of change takes place when you are setting curd?
Name a process through which you can save iron objects from rusting. (Oxidation / Galvanisation / Electrolysis)
Write the name of the gas which can cause holes in the ozone layer? (Oxygen / Nitrogen / CFC)
Name the process through which we get pure substances like common salt? (Filtration/ Sublimation/ Crystallisation)
