Advertisements
Advertisements
Question
State whether the following is physical or chemical changes.
lightning —
Advertisements
Solution
chemical change,
APPEARS IN
RELATED QUESTIONS
Chemical changes are accompanied by changes in energy.
State whether the following is physical or chemical changes.
glowing of a bulb -
State whether the following is physical or chemical changes.
cutting wood into small pieces —
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
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.
You are given some candle wax. Can you make a candle doll from it? What kind of change is this?
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
Distinguish physical and chemical changes.
Classify the following as physical or chemical properties
Metallic sodium is soft enough to be cut with a knife.
If you leave a piece of iron in the open for a few days, it acquires a film of brownish substance, called rust.
Do you think rust is different from iron?
