SSC MTS EXAM

SSC

CHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an exothermic process
A
Evaporation of water
B
Reaction of water with quick lime
C
Sublimation of camphor
D
All of the above
Explanation: 

Detailed explanation-1: -Final answer: Dilution of an acid and Reaction of water with Quicklime are exothermic processes.

Detailed explanation-2: -When quicklime is added to water, it forms slaked lime along with the evolution of heat. There will be a rise in the temperature of the bucket. Calcium oxide reacts with water to form calcium hydroxide, also called slaked lime.

Detailed explanation-3: -CaO ( s ) Quick lime + H 2 O ( l ) Water → Ca ( OH ) 2 ( s ) + ∆ Slaked lime.

Detailed explanation-4: -The slaking of lime is an endothermic change.

There is 1 question to complete.