Chemical changes
Chemical Changes
Chemical Change:
A chemical change occurs when two or more chemical substances react to produce new substance with a different set of properties. It is permanent which cannot be reversed. Examples:
Chemical change are | |||
| Right Option : A | |||
| View Explanation | |||
If two substances are bought in contact . it will result in | |||
| Right Option : C | |||
| View Explanation |
Which of the following are correct : (a) On cutting brinjal the atmospheric oxygen react to produce a brown colour pigment “melanin” that cause browning of the surface. (b) The chemical change is irreversible and permanent. (c) The enzymes present in these micro organisms convert milk sugar (lactose) to lactic acid. | |||
| Right Option : D | |||
| View Explanation | |||
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My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
Hiya Gupta
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
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Shreya Shrivastava
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Cheshta
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Barkha Arora
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Aman Kumar Shrivastava
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Ayan Ghosh
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Eshan Arora
8thA marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Archit Segal
7thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
