2 b i state

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ......................................................... (b) (i) [2] State two advantages of treating drinking water with ozone rather than chlorine. ..................................................................... ..................................................................... ..................................................................... (ii) Other than cost, name one disadvantage of treating drinking water with ozone rather than chlorine. [1] ..................................................................... 221-154 Turn over –8– M01/420/H(3) D3. Explain how secondary pollutants are produced in photochemical smog. State why these substances are undesirable, and suggest three ways in which photochemical smog could be reduced. [10] .............................................................................. .............................................................................. ............................................................................
View Full Document

This note was uploaded on 05/02/2008 for the course CHEM 142,152,16 taught by Professor Unknown during the Spring '08 term at University of Washington.

Ask a homework question - tutors are online