Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 2 (Q.No. 7)
7.
Resins are
not soluble in water
soluble in spirit
used in varnishes
left behind on evaporation of oil
all the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
24 comments Page 1 of 3.

Bharat wagle said:   8 years ago
Resins,

-a sticky flammable organic substance, insoluble in water, exuded by some trees and other plants (notably fir and pine).

-a solid or liquid synthetic organic polymer used as the basis of plastics, adhesives, varnishes, or other products.

So, E is correct.

Sandeep said:   8 years ago
Resins are not soluble in water - correct.

Resins are soluble in spirit- Not all but some are in which resin is soluble.
Used in varnishes- correct.
Left behind on evaporation of oil- correct.
So, the most probable correct answer is E.

All of above.

Amit sharma said:   9 years ago
Resin is a natural or synthetic organic substance which is soluble in some organic solvent such as linseed oil turpentine only. And their resinous solution in a solvent formed varnishes. So guys please don't confuse, the given answer is correct.

Aswin said:   7 years ago
Option E is correct. Resins are insoluble in water and soluble in other solvents like alcohol and also as the oil or solvent evaporates, resin remains.

Souvik said:   8 years ago
Resins are insoluble in water and soluble in spirit and used as components of varnishes. So the option " E. All the above" should be the right answer.

Vicky said:   7 years ago
Some resins are soluble in water and also some resins are not soluble in spirit.

So, the answer C is correct.

Rathla Mohan said:   8 years ago
May be option C is correct resign is soluble in organic solvent is not dilute in organic.

Pankaj said:   7 years ago
I think E is the correct answer because resins are insoluble in water.

Rajesh thakur said:   9 years ago
Option E is correct.

Ref: engineering material by R.K Rajput.

Sameer dev madnawat said:   8 years ago
If option E is not given. Which option is correct?


Post your comments here:

Your comments will be displayed after verification.