Is alumina basic or acidic?
Is alumina basic or acidic?
Aniket Singh , 10 Months ago
Grade
11 grade chemistry others> Is alumina basic or acidic?...
1 AnswersAskiitians Tutor Team
Alumina, which is also known as aluminum oxide (Al2O3), is considered amphoteric, meaning it can exhibit both acidic and basic properties depending on the circumstances.
In an acidic environment, alumina can act as a weak base by accepting protons (H+) from the medium. It can react with strong acids to form aluminum salts and water:
Al2O3 + 6HCl → 2AlCl3 + 3H2O
In a basic environment, alumina can behave as a weak acid by donating protons (H+) to the medium. It can react with strong bases to form aluminum hydroxide:
Al2O3 + 2NaOH → 2NaAlO2 + H2O
Therefore, alumina's amphoteric nature makes it capable of participating in reactions with both acids and bases.
LIVE ONLINE CLASSES
Prepraring for the competition made easy just by live online class.
Full Live Access
Study Material
Live Doubts Solving
Daily Class Assignments
Other Related Questions on 11 grade chemistry others
Which of the following is likely to be least stable?
- (A) Ca₄₀
- (B) Mn₅₅
- (C) Sn₁₁₉
- (D) Al₃₀
Which of the following is likely to be least stable?
- (A) Ca₄₀
- (B) Mn₅₅
- (C) Sn₁₁₉
- (D) Al₃₀
Grade 11 > 11 grade chemistry others
1 Answer Available
Last Activity: 3 Months ago
Which of the following is not a Lewis acid?
- A. BF₃
- B. AlCl₃
- C. FeCl₃
- D. PH₃
Which of the following is not a Lewis acid?
- A. BF₃
- B. AlCl₃
- C. FeCl₃
- D. PH₃
Grade 11 > 11 grade chemistry others
1 Answer Available
Last Activity: 3 Months ago
Which of the following is not a property of compounds?
- (A) They are made up of two or more kinds of atoms.
- (B) They cannot be broken down into two or more simpler substances by physical means but by chemical means only.
- (C) Properties of compounds differ from those of their elements.
- (D) None of the above.
Which of the following is not a property of compounds?
- (A) They are made up of two or more kinds of atoms.
- (B) They cannot be broken down into two or more simpler substances by physical means but by chemical means only.
- (C) Properties of compounds differ from those of their elements.
- (D) None of the above.
Grade 11 > 11 grade chemistry others
1 Answer Available
Last Activity: 3 Months ago
Which of the following is polar?
- A. NF₃
- B. BF₃
- C. SF₄
- D. SiF₄
Which of the following is polar?
- A. NF₃
- B. BF₃
- C. SF₄
- D. SiF₄
Grade 11 > 11 grade chemistry others
1 Answer Available
Last Activity: 3 Months ago
Which of the following metals exists in their native state in nature?
- (i) Ca
- (ii) Au
- (iii) Zn
- (iv) Ag
A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)
Which of the following metals exists in their native state in nature?
- (i) Ca
- (ii) Au
- (iii) Zn
- (iv) Ag
A. (i) and (ii)
B. (ii) and (iii)
C. (ii) and (iv)
D. (iii) and (iv)
Grade 11 > 11 grade chemistry others
1 Answer Available
Last Activity: 3 Months ago