The oxidation state and covalency of Al in [AlCl(H2O)5]2+ are respectively:

1. +3 and 3
2. +6 and 2 
3. +3 and 6
4. +2 and 2 

Subtopic:  Nature of Compound |
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Which of the following oxides is the most basic in nature?

1. Bi2O

2. Bi2O

3. As2O

4. Sb2O5 

Subtopic:  Nature of Compound |
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Given below are two statements: 
 
Statement I:  Generally, only non-metal oxides are acidic but oxides of some metals in high oxidation state are also found to have an acidic character.

Statement II: 
Oxides like CO, NO, and N2O are neutral oxides.
 
1. Both statement I and statement II are true.
2. Both statement I and statement II are false.
3. Statement I is correct but statement II is false.
4. Statement I is incorrect but statement II is true.
Subtopic:  Nature of Compound |
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