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Q. No.| Assertion (A): | Carbon forms two oxides \(CO\) and \(CO_2\) where \(CO\) is neutral whereas \(CO_2\) is acidic. |
| Reason (R): | \(CO_2\) will combine with water to give carbonic acid and \(CO\) is soluble in water. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | Both (A) and (R) are False. |
Subtopic: Compounds of Carbon, Preparations, Properties & Uses |
From NCERT
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Given below are two statements:
| Statement -I | Blood acts as a buffer solution, and its pH is maintained at 7.4 by an acidic buffer. |
| Statement -II | The pH of blood is regulated by the presence of bicarbonate ions (\(\text{HCO}_3^-\)) and carbonic acid (\(\text{H}_2\text{CO}_3\)). |
| 1. | Statement I is false but Statement II is true. |
| 2. | Both Statement I and Statement II are false. |
| 3. | Both Statement I and Statement II are true. |
| 4. | Statement I is true but Statement II is false. |
Subtopic: Compounds of Carbon, Preparations, Properties & Uses |
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