Question 3

An iron ring is heated. Which of the following statement about it is incorrect?
(a) The ring expands
(b) The ring almost comes to the same size on cooling
(c) The change in this case is reversed
(d) The ring changes its shape and the change cannot be reversed

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Solution

The correct statement is that when an iron ring, which is metallic in nature, is heated the ring expands and almost comes to the same size on cooling which indicates that the change can be reversed. So, option (d) is the incorrect statement and correct answer.

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Similar questions

Q. Give an example in the given case:
(a) Change which occurs on heating but can be reversed.
(b) Change that occurs on heating but cannot be reversed.
(c) Change occurs on cooling but can be reversed.
(d) Change occurs on mixing two substances but can be reversed.
(e) Change which occurs on mixing two substances, but cannot be reversed.

Q. An iron ring is heated. Which of the following statements about it is incorrect?

An iron ring is heated. Which of the following statements is incorrect for the given iron ring?

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The ring is heated . When the ring cools it _____ and tightly fits on the handle.

Question 15

Give one example in each case.
Change which occurs on heating but can be reversed.
Change which occurs on heating but cannot be reversed.
Change which occurs on cooling but can be reversed.
Change which occurs on mixing two substances but can be reversed.
Change which occurs on mixing two substances but cannot be reversed.

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Question 3 An iron ring is heated. Which of the following statement about it is incorrect? (a) The ring expands (b) The ring almost comes to the same size on cooling (c) The change in this case is reversed (d) The ring changes its shape and the change cannot be reversed

The correct statement is that when an iron ring, which is metallic in nature, is heated the ring expands and almost comes to the same size on cooling which indicates that the change can be reversed. So, option (d) is the incorrect statement and correct answer.

Question 3

An iron ring is heated. Which of the following statement about it is incorrect?
(a) The ring expands
(b) The ring almost comes to the same size on cooling
(c) The change in this case is reversed
(d) The ring changes its shape and the change cannot be reversed