Classify the following processes into physical or chemical changes:
(i) Beating of aluminium metal to make aluminium foil.
(ii) Digestion of food.
(iii) Cutting of a log of wood into pieces.
(iv) Burning of crackers.
(i) Beating of aluminium metal to make aluminium foil – physical change
(ii) Digestion of food – chemical change
(iii) Cutting of log of wood into pieces – physical change
(iv) Burning of crackers – chemical change
Related Articles
- Classify the changes involved in the following processes as physical or chemical changes:(a) Photosynthesis(b) Dissolving sugar in water(c) Burning of coal(d) Melting of wax(e) Beating aluminium to make aluminium foil(f) Digestion of food\n22989"
- Classify the following as physical or chemical changes :(i) Cooking of food(ii) Boiling of water(iii) Cutting of trees(iv) Dissolving salt in water(v) Digestion of food(vi) Melting of ice
- Which of the following are chemical changes?(i) decaying of wood(ii) burning of wood(iii) sawing of wood(iv) hammering of a nail into wood(a) (i) and (ii) (b) (ii) and (iii)(c) (iii) and (iv) (d) (i) and (iv)
- Explain why burning of wood and cutting it into small pieces are considered as two different types of changes.
- Which of the following are chemical changes?Decaying of woodBurning of woodSawing of woodHammering of a nail into a piece of wood(a) (i) and (ii)(b) (ii) and (iii)(c) (iii) and (iv) (d) (i) and (iv)
- Classify the following as physical or chemical changes :(i) Formation of curd from milk(ii) Condensation of steam(iii) Growth of a plant(iv) Breaking of a glass tumbler
- Which of the following are physical changes?Melting of iron metalRusting of ironBending of an iron rodDrawing a wire of iron metal(a) (i), (ii) and (iii)(b) (i), (ii) and (iv)(c) (i), (iii) and (iv) (d) (ii), (iii) and (iv)
- (a) Give the main difference between physical changes and chemical changes.(b) Which of the following are chemical changes and which physical? Give reason.(i) a glass bottle breaking(ii) coal burning in air(iii) making a cake(iv) wool being knitted into a sweater
- Which of the following are physical changes and which are chemical changes ?Burning of candle wax, Melting of candle wax, Mixing of iron filings and sand, Burning of wood, Breaking a piece of chalk, Burning a piece of paper, Cutting a piece of paper.
- Classify the following into good conductors, resistors and insulators:Rubber, Mercury, Nichrome, Polythene, Aluminium, Wood, Manganin, Bakelite, Iron, Paper, Thermocol, Metal coin
- Chemical properties of Aluminium
- Why aluminium foil is used to store food?
- Which of the following are the correct characteristics of isotopes of an element?(i) same atomic mass(ii) same atomic number(iii) same physical properties(iv) same chemical properties(a) (i), (ii) and (iv)(b) (ii), (iii) and (iv)(c) (ii) and (iii)(d) (ii) and (iv)
- Write down the formulae of(i) Sodium oxide(ii) Aluminium chloride(iii) Sodium sulfide(iv) Magnesium hydroxide.
- Classify the following into elements and compounds :(i) H2O(ii) He(iii) Cl2(iv) CO(v) Co
Kickstart Your Career
Get certified by completing the course
Get Started
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies