Question:
Which of the following is an amphoteric hydroxide?
Which of the following is an amphoteric hydroxide?
Updated On: Apr 25, 2026
- \(Sr(OH)_2\)
- \(Ca(OH)_2\)
- \(Mg(OH)_2\)
- \(Be(OH)_2\)
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
To determine which of the given hydroxides is amphoteric, we need to understand what amphoteric substances are. An amphoteric substance can react with both acids and bases. In the context of hydroxides, only certain metal hydroxides possess this property.
Looking at the options provided:
- \(Sr(OH)_2\): Strontium hydroxide is a strong base and does not exhibit amphoteric behavior. It primarily reacts with acids.
- \(Ca(OH)_2\): Calcium hydroxide is also a strong base and reacts with acids. It does not show amphoteric properties.
- \(Mg(OH)_2\): Magnesium hydroxide is a weak base and it mainly reacts with acids, not considered amphoteric.
- \(Be(OH)_2\): Beryllium hydroxide is amphoteric. It can react with acids to form beryllium salts and with bases to form beryllate ions.
The correct answer is \(Be(OH)_2\) as it can react with both acids and bases. The reactions are as follows:
- Reaction with acid: \(Be(OH)_2 + 2HCl \rightarrow BeCl_2 + 2H_2O\)
- Reaction with base: \(Be(OH)_2 + 2OH^- \rightarrow Be(OH)_4^{2-}\)
This dual ability to react with both acids and bases makes \(Be(OH)_2\) an amphoteric hydroxide.
Was this answer helpful?
0
0
Top NEET Chemistry Questions
- A liquid compound (x) can be purified by steam distillation only if it is
- The unit of rate constant for zero order reaction is
- The number of geometrical isomers of $CH_{3} CH=CH-CH=CH-CH=CHCl$ is
- A $100.0\, mL$ dilute solution of $Ag ^{+}$is electrolysed for $15.0$ minutes with a current of $1.25 \,mA$ and the silver is removed completely. What was the initial $\left[ Ag ^{+}\right]$?
- Which of the following statement is not correct?
View More Questions
Top NEET GROUP 2 ELEMENTS Questions
- The correct order of increasing thermal stability of $K_2CO_3, MgCO_3, CaCO_3 $ and $ BeCO_3$ is
- The method used to remove temporary hardness of water is:
- What is the role of gypsum, $CaSO_{4}.2H_{2}O$ in setting of cement ? Identify the correct option from the following :
- The suspension of slaked lime in water is known as
- The structures of beryllium chloride in solid state and vapour phase, are :
Top NEET Questions
- A coil of inductive reactance $31\, \Omega$ has a resistance of 8 $\Omega$. It is placed in series with a condenser of capacitative reactance $25 \,\Omega$. The combination is connected to an a.c. source of 110 V. The power factor of the circuit is :-
- A liquid compound (x) can be purified by steam distillation only if it is
- In an a.c. circuit with phase voltage V and current I, the power dissipated is
- A bubble in glass slab $ (\mu = 1.5) $ when viewed from one side appears at 5 cm and 2 cm from other side, then thickness of slab is
- A bulb is located on a wall. Its image is to be obtained on a parallel wall with the help of convex lens. If the distance between parallel walls is 'd' then required focal length of lens placed in between the walls is : -
View More Questions