हिंदी

Assertion (A): Dehydration of carbohydrate is called charring. Reason (R): After the dehydration of carbohydrates, carbon is left behind.

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प्रश्न

Assertion (A): Dehydration of carbohydrate is called charring.

Reason (R): After the dehydration of carbohydrates, carbon is left behind.

विकल्प

  • If both A and R are true, and R is the correct explanation of A.

  • If both A and R are true, but R is not the correct explanation of A.

  • If A is true, but R is false.

  • If both A and R are false.

MCQ
अभिकथन और तर्क
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उत्तर

If both A and R are true, and R is the correct explanation of A.

Explanation:

When carbohydrates like cane sugar or glucose react with a strong dehydrating agent, the hydrogen and oxygen are completely removed as water. This chemical removal leaves behind a black, spongy mass of elemental carbon, which is why the dehydration process is explicitly called charring. Therefore, the reason directly explains why the reaction gets this specific name.

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अध्याय 11: Study of Compounds: Sulphuric Acid - Exercises [पृष्ठ २४२]

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फ्रैंक Chemistry Part 2 [English] Class 10 ICSE
अध्याय 11 Study of Compounds: Sulphuric Acid
Exercises | Q 2. (n) | पृष्ठ २४२
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