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CBSE Class 10 Answered

the acid formed on dissolving sulphur dioxide in water is-
Asked by deepitapai | 13 Feb, 2009, 12:25: PM
Expert Answer

sulphurous acid

Answered by | 14 Feb, 2009, 05:18: PM

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CBSE 10 - Chemistry
bases example
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CBSE 10 - Chemistry
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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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CBSE 10 - Chemistry
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CBSE 10 - Chemistry
What will react with baking soda to release carbon dioxide gas a) Nitric acid b) Sodium hydroxide c) Calcium oxide d) Carbon Dioxide
Asked by chetnasachdeva.sachdeva2006 | 25 Nov, 2021, 05:26: PM
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CBSE 10 - Chemistry
GIVE THE PH RANGE BY WHICH WE CAN CHARACTERISE AN ACID OR A BASE TO BE STRONG OR WEAK, RESPOND SOON PLEASE.
Asked by Trisha Gupta | 23 Nov, 2021, 02:45: AM
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CBSE 10 - Chemistry
PLS GIVE LIST OF WHAT COLOR NATURAL INDICATORS: RED CABBAGE LEAVES, COLORED PETALS OF GERANIUM, PETUNIA AND HYDRANGEA GIVE IN ACIDIC AND BASIC MEDIUM
Asked by Trisha Gupta | 23 Nov, 2021, 02:40: AM
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CBSE 10 - Chemistry
pls can you give a list of some common compounds important from exam point of view - acids and bases in that pls mention what pH they have and what color they show on the ph paper when tested
Asked by Trisha Gupta | 23 Nov, 2021, 02:28: AM
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CBSE 10 - Chemistry
give a way to predict the parent acid and parent base of any salt, respond soon,
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