Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Physical and Chemical Changes, Class 7, Science. You can practice these practice quizzes as per your speed and improvise the topic.Q.Melting of ice is aa)Both physical and chemical changeb)Chemical changec)Periodic changed)Physical changeCorrect answer is 'D'. Can you explain this answer?

Question

Answer

D]

Answer

No new substance is formed during the melting of ice, only a change of state (from solid to liquid) takes place during the melting of ice. So, the melting of ice (to form water) is a physical change. So, the freezing of water (to form ice) is a physical change.

Answer

Melting of ice is a physical change as the change occurs in the physical property of the substance.That is the ice changes into vapour.Moreover the change is reversible and this change does not form any new substance.Thus,its a physical change...!!

Answer

Melting of ice is a physical change because it does not involve any change in the chemical composition or the formation of new substances. It is a change in the state of matter from solid to liquid, which is a reversible process.

Physical change:
- A physical change is a change that affects the physical properties of a substance without altering its chemical composition.
- It involves a change in the physical state, shape, size, or phase of a substance.
- The substance before and after the change remains the same at the molecular level.

Explanation:
1. Definition of melting:
- Melting is the process in which a solid substance changes its state to become a liquid when heated.
- In the case of ice, which is solid water, it melts to become liquid water when heat is applied.

2. Change in physical state:
- Melting of ice involves a change in the physical state of water from solid to liquid.
- The ice molecules, which are arranged in a regular pattern, gain enough energy from the surroundings to break the intermolecular forces holding them together.
- As a result, the ice particles start moving more freely, leading to the formation of liquid water.

3. Reversibility:
- Melting is a reversible process, meaning that if the liquid water is cooled, it will freeze back into solid ice.
- This is because the change in state is solely due to the addition or removal of heat energy, and no new substances are formed.

4. No change in chemical composition:
- The melting of ice does not involve any chemical reactions or the formation of new substances.
- The chemical composition of water remains unchanged before, during, and after the melting process.
- The H2O molecules in ice and water are the same; only the arrangement and movement of these molecules change during melting.

Conclusion:
Based on the above explanations, it is clear that the melting of ice is a physical change. It involves a change in the physical state of water from solid to liquid, without any alteration in its chemical composition.

Answer

Melting of ice is a physical change because no new substance is formed

Answer

D i would prepare for physical change

Answer

Because melting of ice is reversible and does not make any changes in the ice which is made from water.

IF YOU LIKE THIS ANSWER PLEASE UPVOTE AND BE MY FOLLOWER..

Answer

Melting of an ice is a reversible change and it has a change in its state these properties match with the physical change so buy this we can prove that the correct answer is d thank you

Answer

Melting of ice is a physical change because there is no change in the composition of the ice  the only change that occurs here is change in state(solid to liquid)  this does not affect the composition of the substance therefore it is a physical change.

Answer

Because the melting of ice is a reversible change

Answer

Ya, it's physical change because it can again be Made candle.

Answer

It is because when it melts and become water, water can be again freezed and become ice

Answer

It is physical change bcoz it is reversible.. and in physical change only physical property of a substance like.. shape, size, colour and state will take place.... as well as in melting of ice.. ice has changing its state into liquid.... and with freezing we can make the liquid into ice again....

Answer

Mcq

Answer

Physical change

Answer

Because the melting of ice is a reversible change

Answer

D is the right answer

Similar Class 7 Doubts

Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Heat, Class 7, Science. You can practice these practice quizzes as per your speed and improvise the topic.Q.The heat in metals is conducted by the process of

Practice Quiz or MCQ (Multiple Choice Questions) with solutions are available for Practice, which would help you prepare for chapter Nutrition in Animals, Class 7, Science. You can practice these practice quizzes as per your speed and improvise the topic.Q.Mode of nutrition in animal is

Top Courses for Class 7View all

Science Class 7

Mathematics (Maths) Class 7

Social Studies (SST) Class 7

English Grammar Class 7

Worksheets with solutions for Class 7

Top Courses for Class 7

Top Courses for Class 7

Suggested Free Tests

Related Content

Class 7 Study Material

Class 7 Subjects

Competitive Examinations for Class 7

NCERT Books

Reference Books for Class 7

NCERT Solutions

Other Popular Exams

Company