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Which technique separates ions based on their mass-to-charge ratio?
- Chromatography
- Spectrophotometry
- Mass spectrometry
- Electrophoresis
Answer: Mass spectrometry
MS ionizes molecules, accelerates ions through magnetic/electric fields; separation by m/z enables precise molecular weight determination and structural analysis. Used in proteomics, metabolomics, forensics. [[NCERT Chemistry Class 12]]