Advertisements
Advertisements
प्रश्न
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
Advertisements
उत्तर
On keeping aside – the milk in a dish for a few hours or more. The change observed – will be that the milk has changed into curd. The change is permanent and cannot be reversed. New substance curd is formed. It is a chemical change.
APPEARS IN
संबंधित प्रश्न
Ripening of fruits is a desirable change.
Classify the following changes as physical or chemical: curdling of milk
Write true or false
Cutting of paper into pieces is a chemical change.
Write true or false
Melting of ice is a physical change.
Write true or false
Burning of sugar is a temporary change.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Define a chemical change. Give two examples of the above changes.
Fill in the blank with the correct word of the statement given below:
Sublimation of iodine is an example of _________ change.
The change of state of a substance from solid to liquid and liquid to gas is ______.
Adding sugar to milk is a physical change.
