Based on the given proton NMR spectrum, we can deduce the following information:1. A singlet at 1.2 ppm with an integration of 3 suggests that there are three equivalent protons in a methyl group CH3 that are not adjacent to any other protons.2. A doublet at 2.5 ppm with an integration of 2 indicates that there are two equivalent protons in a methylene group CH2 that is adjacent to another proton, as the splitting pattern follows the n+1 rule where n is the number of adjacent protons .3. A quartet at 3.7 ppm with an integration of 1 implies that there is a single proton adjacent to the methylene group CH2 mentioned earlier, as it is split into a quartet due to the three adjacent protons in the CH2 group.Based on this information, the structure of compound X is likely to be isopropyl alcohol also known as 2-propanol or isopropanol , which has the following structure:CH3-CH OH -CH3