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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
Chemical reactions are example for
Burning of match stick is a reversible change.
Analogy
Dissolution of glucose : reversible change :: Digestion of food: ___________ change
Water on ______ changes to ice and on ______ comes back to water.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?
Give one example of change occurs on mixing two substances, but can be reversed.
Find the odd one out and give reason for your choice.
Circle the odd one out. Give reason for your choice.
Choose the odd one out. Give reason for your choice.
