10 cm³ of a gaseous compound hydrocarbon q requires 45 cm³ of oxygen for complete combustion. q reacts with 1 mol of bromine to form brominated compound of rmm 200.02 which contains 79.2℅ bromine; determine molecular formula and structural formula of q .

2positives of biotechnology: 1. plants have become more resistant to viruses and other communicable pests.2. with the of biotechnology, we have been able to produce better tasting fruits as well as vegetables.2 negatives of biotechnology: 1. biotechnology poses a number of environmental threats. genetically modifies crops often infect monarch butterflies and other insect species.2. viruses could combine with crops.

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