Correct answer
B. Same as thermosetting phenol-formaldehyde
Explanation
The correct answer is Same as thermosetting phenol-formaldehyde.
Pick out the wrong statement?
In Orsat’s apparatus, ammoniacal cuprous chloride is used for selectivity absorbing________?
Which of the following is the most suitable for very high pressure gas phase reaction?
Pick out the wrong statement?
The equipment used in the extraction of highly corrosive radioactive liquids is________?
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of ________ high above earth’s atmosphere, which absorbs it?