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प्रश्न
Formation of curd from milk is
पर्याय
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
Very Short Answer Type Question:
Give two examples of reversible changes.
Long Answer Type Question:
Explain how a metal rim slightly smaller than a wooden wheel can be fixed on it.
Circle the odd one.
Salt can be separated from its solution (salt dissolved in water), because ______.
Rolling of chapati and baking of chapati are the changes that ______.
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 which occurs on mixing two substances, but cannot be reversed.
Paheli mixed flour and water and
- made a dough,
- rolled the dough to make a chapati,
- baked the chapati on a pan,
- dried the chapati and ground it in a grinder to make powder.
Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.
Select the odd one out. Give reason for your the choice
Choose the odd one out. Give reason for your choice.
