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- Which of these is the most basic oxide?Option: 1 FeOOption: 2 CuO<d
- #Joint Entrance Examination Main
- #Engineering
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Which of these is the most basic oxide?
FeO
CuO
SnO2
K2O
Answers (1)
Chemical Properties of Elements -
Nature of Oxides
When the oxygen atom combines with any other atom and forms a compound, then it is known as as oxide. In moving from left to right in a period, the nature of oxide changes from basic to acidic while in moving down the group, the basic nature of oxides increases and acidic nature decreases. The oxides of metals are basic in nature, oxides of non-metals are acidic in nature and oxides of metalloids are amphoteric in nature.
|
Na2O |
MgO |
Al2O3 |
SiO2 |
P2O5 |
SO3 |
Cl2O7 |
|
Strongly basic |
Basic |
Amphoteric |
Weakly acidic |
Acidic |
Strongly acidic |
Strongly acidic |
If an element forms a number of oxides, then acidic nature of oxides increases with the increase oxygen atoms.
|
MnO |
Mn2O3 |
MnO2 |
MnO3 |
Mn2O7 |
|
Basic |
Basic |
Neutral |
Acidic |
Acidic |
-
Alkali metal oxide (K2O) is most basic in nature. While going left to right in periods the basic nature decreases. K is in the first group most left in the periodic table, so K2O will be the most basic oxide among these.
Therefore, Option(4) is correct
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