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प्रश्न
State whether the following is physical or chemical changes.
(energy produced) dissolving sugar in water —
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उत्तर
physical change,
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संबंधित प्रश्न
Fill in the blank.
Changes that occur in nature are called ........................
Write short answer.
Give an example of desirable change which can also be undesirable
Write short answer.
What are man-made changes ?
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
State whether the following is physical or chemical changes.
lightning —
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Select the chemical changes from the following list of changes
Butter turning rancid
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Iron pipes coated with zinc do not get rusted easily.
