General Knowledge - General Science - Discussion

Discussion Forum : General Science - Elements and Metals (Q.No. 18)
18.
The property of a substance to absorb moisture from the air on exposure is called
osmosis
deliquescence
efflorescence
desiccation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
27 comments Page 1 of 3.

VIJAY said:   1 decade ago
Deliquescent materials are substances (mostly salts)that have strong affinity for moisture and will absorb relatively large amounts of water from the atmosphere if exposed to it, forming liquid solution.

Maame yaa said:   1 decade ago
What's efflorescence?

Papitha said:   1 decade ago
Efflorescence means loss of water of crystallization from hydrated or solvated salts to the atmosphere on exposure to air

Aman krishna said:   1 decade ago
Certain compound when exposed to the atmosphere loose their water of crystallization and turn into a powder.

For example iron chloride.

Harman said:   1 decade ago
What is dessication?

Ganesh said:   1 decade ago
Dessication means making the matter dry by removal of water,it is also called dehydration.

Mamata said:   1 decade ago
Deliquesce is a process of absorbing moisture from the air and become liquid.

Sam said:   1 decade ago
Osmosis is the diffusion of the movement of water from a region of higher concentration to a region of lower concentration through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion (passive transport).

Sarav said:   1 decade ago
What is osmosis?

Suman moktan said:   1 decade ago
Definition: the process in which a soluble substance picks up water vapor from the air to fom a solution. In order for deliquescence to occur, the vapor pressure of the water in the air must be greater than the vapor pressure of the saturated solution.


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