Advertisements
Advertisements
प्रश्न
Classify the following as physical or chemical properties
Metallic sodium is soft enough to be cut with a knife.
Advertisements
उत्तर
Physical property
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
Write true or false for the statement
A natural change can also be a desirable change
Name a chemical change which takes place in presence of:
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
Give four difference between physical and chemical changes.
State why addition of sodium chloride to water is considered a physical change, while addition of dilute sulphuric acid to zinc is considered a chemical change.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
Give a reason why – Heating a platinum wire is a reversible change but, heating a magnesium wire is an irreversible change.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Give an example of a physical change in which the color of the substance changes.
