Chemistry - Section 1 (4)
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Chemistry - Section 1
| 25. |
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Answer: Option C Explanation: No answer description available for this question. Let us discuss. |
| 26. | The mineral containing both magnesium and calcium is |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
| 27. | The main chemical constituent of clay is |
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Answer: Option D Explanation: No answer description available for this question. Let us discuss. |
| 28. | The major constituent of air is |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 29. | The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 30. | The iron ore magnetite consists of |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 31. | The high reactivity of fluorine is due to |
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Answer: Option A Explanation: No answer description available for this question. Let us discuss. |
| 32. | The molecule which has the highest percentage of ionic character among the following is |
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Answer: Option B Explanation: No answer description available for this question. Let us discuss. |