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But PDF files need to do more than simply replicate the original design of a document – they’ve become increasingly interactive, with form-filling, annotations, digital signatures and much more. These days, you can create PDFs without having to shell out for the privilege – once of the best free tools for creating PDFs comes in the form of the excellent Nitro Reader. It doesn’t matter what application has been used to create the original document, by exporting it as a PDF you ensure it won’t change appearance when viewed elsewhere. (iii) Benzene can be converted into p-nitrotoulene as:īenzene reacts with methyl chloride in presence of anhydrous aluminum chloride to give toluene.PDF files are quite simply the best means of sending a document to somebody else in a format you’ll know will appear exactly as you intend it to on their computer. Chlorination with chlorine in presence of anhydrous aluminum chloride gives meta nitro chlorobenzene. Nitration of benzene with conc nitric acid and conc sulphuric acid gives nitrobenzene. (ii) Benzene can be converted into m-nitrochlorobenzene: nitric acid and concentric sulphuric acid give a mixture of ortho-bromonitrobenzene and para-bromo nitrobenzene which are separated by fractional distillation. (i) Benzene can be converted into p-nitrobromobenzene as:Įlectrophilic aromatic substitution of benzene with bromine in presence of ferric bromide gives bromobenzene.