SSC
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many oxygen (0) atoms are in Al(NO3)3?
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13
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9
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15
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6
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Explanation:
Detailed explanation-1: -Answer and Explanation: In one formula unit of Al(NO3)3, there would be nine atoms of oxygen.
Detailed explanation-2: -We also know that one formula unit of aluminum nitrate contains nine atoms of oxygen.
Detailed explanation-3: -Oxidation state of oxygen is-2. Assuming that Al(NO3)3 taken is neutral in nature, the sum of the individual oxidation states will be zero.
Detailed explanation-4: -Hence one unit of aluminium nitrate contains total 13 atoms: 1 atom of aluminium. 3 atoms of nitrogen. 9 atoms of oxygen.
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