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A group of acidic oxide is
- a)Na2O, Al2O3
- b)ZnO, Al2O3
- c)Li2O, MgO
- d)CrO3,Mn2O7
Correct answer is option 'D'. Can you explain this answer?
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A group of acidic oxide isa)Na2O, Al2O3b)ZnO, Al2O3c)Li2O, MgOd)CrO3,M...
Both r acidic oxides. we know that as oxidation number increases acidic nature increases so in cro3. cr. has +6 oxidation state and in mn2o7 mn has +7 which r highest oxidation states for them.
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A group of acidic oxide isa)Na2O, Al2O3b)ZnO, Al2O3c)Li2O, MgOd)CrO3,M...
Acidic oxides are oxides that react with water to form an acid. In this question, we are asked to identify a group of acidic oxides among the given options: Na2O, Al2O3, ZnO, Al2O3, Li2O, MgO, CrO3, and Mn2O7.
To determine which options are acidic oxides, we need to consider the properties of oxides and their reactions with water.
1. Na2O: Sodium oxide (Na2O) is a basic oxide and reacts with water to form a strong base, sodium hydroxide (NaOH). It is not an acidic oxide.
2. Al2O3: Aluminum oxide (Al2O3) is amphoteric, meaning it can react with both acids and bases. It can react with water to form both acidic and basic solutions, depending on the conditions. It is not specifically an acidic oxide.
3. ZnO: Zinc oxide (ZnO) is amphoteric like aluminum oxide and can react with both acids and bases. It can react with water to form both acidic and basic solutions. It is not specifically an acidic oxide.
4. Li2O: Lithium oxide (Li2O) is a basic oxide and reacts with water to form a strong base, lithium hydroxide (LiOH). It is not an acidic oxide.
5. MgO: Magnesium oxide (MgO) is a basic oxide and reacts with water to form a strong base, magnesium hydroxide (Mg(OH)2). It is not an acidic oxide.
6. CrO3: Chromium trioxide (CrO3) is a highly acidic oxide. It reacts with water to form chromic acid (H2CrO4). It is an acidic oxide.
7. Mn2O7: Manganese heptoxide (Mn2O7) is also a highly acidic oxide. It reacts with water to form permanganic acid (HMnO4). It is an acidic oxide.
Therefore, the group of acidic oxides among the given options is option 'D': CrO3, Mn2O7.
In summary, acidic oxides are oxides that react with water to form an acid. Among the given options, only CrO3 and Mn2O7 are acidic oxides.
To determine which options are acidic oxides, we need to consider the properties of oxides and their reactions with water.
1. Na2O: Sodium oxide (Na2O) is a basic oxide and reacts with water to form a strong base, sodium hydroxide (NaOH). It is not an acidic oxide.
2. Al2O3: Aluminum oxide (Al2O3) is amphoteric, meaning it can react with both acids and bases. It can react with water to form both acidic and basic solutions, depending on the conditions. It is not specifically an acidic oxide.
3. ZnO: Zinc oxide (ZnO) is amphoteric like aluminum oxide and can react with both acids and bases. It can react with water to form both acidic and basic solutions. It is not specifically an acidic oxide.
4. Li2O: Lithium oxide (Li2O) is a basic oxide and reacts with water to form a strong base, lithium hydroxide (LiOH). It is not an acidic oxide.
5. MgO: Magnesium oxide (MgO) is a basic oxide and reacts with water to form a strong base, magnesium hydroxide (Mg(OH)2). It is not an acidic oxide.
6. CrO3: Chromium trioxide (CrO3) is a highly acidic oxide. It reacts with water to form chromic acid (H2CrO4). It is an acidic oxide.
7. Mn2O7: Manganese heptoxide (Mn2O7) is also a highly acidic oxide. It reacts with water to form permanganic acid (HMnO4). It is an acidic oxide.
Therefore, the group of acidic oxides among the given options is option 'D': CrO3, Mn2O7.
In summary, acidic oxides are oxides that react with water to form an acid. Among the given options, only CrO3 and Mn2O7 are acidic oxides.
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A group of acidic oxide isa)Na2O, Al2O3b)ZnO, Al2O3c)Li2O, MgOd)CrO3,Mn2O7Correct answer is option 'D'. Can you explain this answer?
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