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Asked by sweetynam | 17 Feb, 2009, 11:05: PM
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Natural anti-oxidants include flavonoids, polyphenols, ascorbic acid (vitamin C) and tocopherols (vitamin E) which are usually added to remove rancidity.

Answered by | 20 Feb, 2009, 12:07: AM
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CBSE 10 - Chemistry
1.A farmer has grown the petunia flowers on his field. He observed that the colour of the flowers started changing from blue to reddish purple. • What could be the possible reason for the change in colour? ⚫ What role is played by petunia flowers? • Suggest any two substances playing the same role in the field of agriculture. • What should be added by the farmer to treat the soil? What type of reaction will take place during treatment of soil? 2. A metal X reacts with HCI to liberate gas A but its compound Y releases gas B with HCI along with the salt CaCl,. Name the metal X. • Identify gas A and how will you test for it? ⚫ Name the salt Y and give its molecular formula. • Identify gas B and how will you test for it? What type of reaction takes place when X reacts with HCI? 3. A sodium salt 'A' is used while baking a cake. It makes the cake fluffy and spongy due to the release of gas 'B'. Identify salt 'A'. ⚫ What is the common name of this salt? ⚫ Which gas is released during the process? • How will you test for gas 'B'? 4. Anita's mother asked her to store the pickle in some bowl. She kept the pickle in a brass bowl. Was she right in doing that? Why or why not?
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CBSE 10 - Chemistry
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Asked by Trisha Gupta | 23 Nov, 2021, 02:45: AM
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PLS GIVE LIST OF WHAT COLOR NATURAL INDICATORS: RED CABBAGE LEAVES, COLORED PETALS OF GERANIUM, PETUNIA AND HYDRANGEA GIVE IN ACIDIC AND BASIC MEDIUM
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CBSE 10 - Chemistry
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