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Question
Digestion of food is a physical change.
Options
True
False
Solution
Digestion of food is a physical change- False.
Correct statement
Digestion of food is a chemical change.
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RELATED QUESTIONS
Match the columns
| column A | coulmn B |
| 1. A change which cannot be easily reversed | a. man-made change |
| 2.A change that repeats itself at regular intervals | b. chemical change |
| 3. A change that is made by humans | c. physical change |
|
4. A change in which the original substance cannot be obtained |
d. periodic change |
| 5. A change where no new substance is formade | e. irreversible change |
| f. slow change |
Give the main differences between physical changes and chemical changes.
Which of the following are chemical changes ?
- decaying of wood
- burning of wood
- sawing of wood
- hammering of nail into wood
Classify the following as a physical or a chemical change.
Burning of coal
Select the chemical changes from the following list of changes
Change of seasons
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
Higher order Thinking question
Boiling of water is a physical change; but boiling of egg is a chemical change. Why?
Match the items of Column I with the items of Column II
| Column 1 | Column II | ||
| (a) | Large crystals | (i) | Turns lime water into milky |
| (b) | Depositing a layer of zinc on iron | (ii) | Physical change |
| (c) | Souring of milk | (iii) | Rust |
| (d) | Carbon dioxide | (iv) | Sugar candy (Mishri) |
| (e) | Iron oxide | (v) | Chemical change |
| (f) | Dissolving common salt in water | (vi) | Galvanisation |
A physical change is generally____________.
Cutting a log of wood into pieces is a chemical change.
