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प्रश्न
Formation of curd from milk is
विकल्प
a reversible change
a fast change
an irreversible change
an undesirable change
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उत्तर
An irreversible change
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संबंधित प्रश्न
Short Answer Type Question:
What is a physical change? Explain with example.
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Long Answer Type Question:
How does curd being set? Is this change reversible?
Analogy
Curdling of milk : irreversible change :: Formation of clouds : ________change
Water on ______ changes to ice and on ______ comes back to water.
While lighting a candle, Paheli observed the following changes.
- Wax was melting
- Candle was burning
- Size of the candle was reducing
- Melted wax was getting solidified.
Of the above, the changes that can be reversed are
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Give one example of change which occurs on heating but cannot be reversed.
Find the odd one out and give reason for your choice.
Choose the odd one out. Give reason for your choice.
