Advertisements
Advertisements
Question
Write true or false
Burning of sugar is a temporary change.
Options
True
False
Advertisements
Solution
False
APPEARS IN
RELATED QUESTIONS
Ripening of fruits is a desirable change.
How do you say that the process of digestion is a chemical change ?
Two chemical substances X and Y combine together to form a product P which contains both X and Y X + Y P
X and Y cannot be broken down into simpler substances by simple chemical reactions. Which of the following statements concerning X, Y and P are correct ?
- P is a compound
- X and Y are compounds
- X and Y are elements
- P has a fixed composition
What will you take into account while identifying the following?
A physical change in a substance.
Compare the energy changes involved during a physical and a chemical change.
Select the correct answer from the choice given below to complete the sentence
The energy required for completion of a physical change is ______________ when the change is reversed.
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
Give two examples for the following case:
Physical changes which are reversible
Iron pipes coated with zinc do not get rusted easily.
Mention some of the different conditions needed for chemical changes to occur.
