Question:
Solubility of CaO in water is:
Solubility of CaO in water is:
Show Hint
Exothermic reactions release heat, and the dissolution of CaO in water is an example of such a reaction.
Updated On: May 2, 2025
- Chermic
- Endothermic
- Exothermic
- Hypothermic
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Solubility of CaO in water is:
- Option 1: Chermic - This is not a correct term related to solubility or dissolution processes. It appears to be a typographical error.
- Option 2: Endothermic - This is incorrect. An endothermic process absorbs heat, but the dissolution of CaO in water releases heat.
- Option 3: Exothermic - This is the correct answer. When calcium oxide (CaO) dissolves in water, it reacts exothermically, releasing a significant amount of heat and forming calcium hydroxide (Ca(OH)2).
- Option 4: Hypothermic - This is not a recognized term in chemistry related to the dissolution process.
Explanation:
The dissolution of calcium oxide (CaO) in water is an exothermic process, meaning that it releases heat. The reaction produces calcium hydroxide (Ca(OH)2) and is highly exothermic, making it feel hot to the touch.
Was this answer helpful?
0
0
Top Questions on Solutions
- Calculate the boiling point of a solution containing 0.61 g of benzoic acid (122 \( g mol^{-1} \)) in 5 g of \( CS_2 \) in which it dimerises to 88%. \( T_b^\circ(CS_2) = 46.2^\circ C, K_b = 2.3 K kg mol^{-1} \).
- State Raoult’s Law for volatile solutes and explain its deviations.
- Define Colligative Properties and provide two examples.
- What type of deviation from Raoult’s law is shown by mixture of ethanol and acetone? Give reason. What will happen to the boiling point of the solution on mixing ethanol and acetone?
- Assertion (A) : Components of azeotropes are easily separated by fractional distillation.
Reason (R) : Components of an azeotrope have same composition in liquid and vapour phase.
View More Questions
Questions Asked in OJEE exam
- The speed of a projectile is half of its initial speed at maximum height. Then, the angle of projection will be
- OJEE - 2025
- Projectile motion
In the system shown below, $x(t)=\sin(t)u(t)$. In steady-state, the response $y(t)$ will be
- OJEE - 2025
- Frequency response
- The response of a network is $i(t) = K t e^{-\alpha t}$ for $t \ge 0$, where $\alpha$ is real and positive. The value of $t$ at which $i(t)$ will become maximum is,
- OJEE - 2025
- Network Theorems
The time constant of the network shown in the figure is
- OJEE - 2025
- Network Theorems
The parallel RLC circuit shown in the figure is in resonance. In this circuit,
- OJEE - 2025
- AC Circuits
View More Questions