Advertisements
Advertisements
Question
Write true or false
Decomposition of leaves is a fast change.
Options
True
False
Advertisements
Solution
False.
Decomposition of leaves is a slow change.
APPEARS IN
RELATED QUESTIONS
Classify the following as chemical or physical change:
Cutting of trees
Classify the following changes as physical or chemical:- melting of a solid (wax)
What are reversible and irreversible changes ? Give one example for each.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
Give a reason why – Addition of zinc nitrate to water is a physical change but, the addition of zinc to dilute nitric acid is a chemical change.
Select the chemical changes from the following list of changes
Drying of a fruit
A change in which matter undergoes a change but the total mass of the substance is unaltered is a ______ change.
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
What type of change is colouring of a paper?
Two drops of dilute sulphuric acid were added to 1 g of copper sulphate powder and then small amount of hot water was added to dissolve it (step I). On cooling, beautiful blue coloured crystals got separated (step II). Step I and Step II are:
