- Section 1
| 1. |
The nucleus of an atom consists of |
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| 2. |
The metal used to recover copper from a solution of copper sulphate is |
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| 3. |
The number of moles of solute present in 1 kg of a solvent is called its |
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| 4. |
The most electronegative element among the following is |
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| 5. |
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of |
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