Which among the following are physical or chemical changes?
(a) Evaporation of petrol
(b) Burning of Liquefied Petroleum Gas (LPG)
(c) Heating of an iron rod to red hot.
(d) Curdling of milk
(e) Sublimation of solid ammonium chloride
Physical changes
(a) Evaporation of petrol
(c) Heating of an iron rod to red hot.
(e) Sublimation of solid ammonium chloride
Chemical changes
(b) Burning of Liquefied Petroleum Gas (LPG)
(d) Curdling of milk
Related Articles
- Which of the following are physical changes and which are chemical changes?(a) Burning of a magnesium wire(b) Freezing of water(c) Rusting of iron(d) Glowing of an electric bulb
- What is the composition of liquefied petroleum gas (LPG)?
- State one use each of the following products of petroleum:(a) petroleum gas,(b) petrol,(c) Diesel,(d) Lubricating oil,(e) Bitumen
- Which of the following is not a physical change?(a) Boiling of water to give water vapour(b) Melting of ice to give water(c) Dissolution of salt in water(d) Combustion of Liquefied Petroleum Gas (LPG)
- Which of the following are chemical changes?(a) Growth of a plant (b) Rusting of iron(c) Mixing of iron filings and sand (d) Cooking of food(e) Digestion of food (f) Freezing of water(g) Burning of a candle.
- 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.
- (a) What is sublimation? Name two substances (other than ammonium chloride) which undergo sublimation.(b) Draw a labeled diagram of the experimental set-up to demonstrate the sublimation of ammonium chloride.
- Which among the following changes are exothermic or endothermic in nature?(a) Decomposition of ferrous sulphate(b) Dilution of sulphuric acid(c) Dissolution of sodium hydroxide in water(d) Dissolution of ammonium chloride in water
- One of the following does not undergo sublimation. This one is :(a) iodine (b) sodium chloride(c) ammonium chloride (d) camphor
- Give two examples for each of the following cases:(a) Physical changes which are reversible.(b) Physical changes which are not reversible.(c) Chemical changes.
- 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"
- Which of the following are not compounds?(a) Chlorine gas(b) Potassium chloride(c) Iron(d) Iron sulphide(e) Aluminium(f) Iodine(g) Carbon(h) Carbon monoxide(i) Sulphur powder
- Classify each of the following, as a physical or a chemical change. Give reasons.(a) Drying of a shirt in the sun(b) Rising of hot air over a radiator(c) Burning of kerosene in a lantern(d) Change in the color of black tea on adding lemon juice to it(e) Churning of milk cream to get butter.
- 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 mixture of milk and groundnut oil can be separated by :(a) sublimation (b) evaporation(c) separating funnel (d) filtration
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