Question

ਹੇਠ ਲਿਖਿਆਂ ਵਿੱਚੋਂ ਪਰਤਵੇਂ ਪਰਿਵਰਤਨ ਨੂੰ ਪਹਿਚਾਨੋ? / Identify the changes that can be reversed? / निम्नलिखित में से दोहराए जा सकने वाले परिवर्तन की पहचान करो? *

ਭੋਜਨ ਦਾ ਪਕਣਾ /cooking of food / भोजन का पकना

ਦਹੀਂ ਦਾ ਜੰਮਣਾ /Setting of curd / दही का जन्म

ਬਰਫ ਦਾ ਪਿਘਲਣਾ / melting of ice / बर्फ का पिघलना

ਉਪਰੋਕਤ ਸਾਰੇ /all of the above / उपरोक्त सभी.
only write right answer​

Answer 1

Answer:

ਬਰਫ ਦਾ ਪਿਘਲਣਾ / melting of ice / बर्फ का पिघलना

Explanation:

PLSSS MARK AS BRAINLIST

Answer 2

Identify the changes that can be reversed?

A. Cooking of food

B. Setting of curd

C. Melting of ice

D. All of the above

Explanation:

• The correct answer is the melting of ice. (option c)

• Reversible changes are changes that can be undone or reversed.

• The substance we used at the beginning of any reaction can be brought again without any changes.

• Cooking is done with raw foods. Once the cooking is done, we cannot get back the raw foods from that reaction.

• Curd is set with the curdled milk. Once the curd is made, we cannot get the milk back from that reaction.

• But if ice is melted, the water can be frozen again, and we can the same ice from it.

• Some reversible reactions are dissolving, evaporation, melting, and freezing.