Which toxic substance is a clear oily substance often used in electrical transformers?Group of answer choicesPCB’sBenzeneDioxinsRadon

Which toxic substance is liquid at room temperature and found in fluorescent light bulbs? Group of answer choicesLeadCadmiumMercury

Which harmful substance was once commonly used as insulation?a. asbestosb. mercuryc. leadd. radone. ozone

Which toxic substance has no known use and is a by-product bleaching paper pulp? Group of answer choicesDioxinsBenzenePCB’sAsbestos

Which of the following chemicals is applied as a gas to sterilize equipment and disinfect surfaces?ANSWERHydrogen peroxideEthylene oxideIsopropanolPhenol

Match each of the following with its main hazard.Hint: See the 'Safety' section.Group of answer choicesPipetteAcetic acidThymol blue0.1 M Sodium Hydroxide