1.

What percentage of zinc oxide is present in a typical exterior white paint?(a) 15% ZnO(b) 50% ZnO(c) 25% ZnO(d) 10% ZnOI got this question by my college professor while I was bunking the class.The question is from Natural Products topic in chapter Natural Products of Chemical Technology

Answer»

Right option is (c) 25% ZnO

Best explanation: A typical EXTERIOR white paint contains 15% TIO2, 25%ZnO, 50% white LEAD, and 10% pigment extender. Paint with this COMPOSITION has self cleaning feature by a process called chalking process.



Discussion

No Comment Found

Related InterviewSolutions