GATE Organic Chemistry: Experimental Techniques in Organic Chemistry: Optical rotation (polarimetry). Application of various chromatographic techniques such as thin-layer, column, HPLC and GC. Applications of UV-visible, IR, NMR spectroscopy and Mass spectrometry in the structural determination of organic molecules. – Previous Year Questions
8 GATE previous year questions on Experimental Techniques in Organic Chemistry: Optical rotation (polarimetry). Application of various chromatographic techniques such as thin-layer, column, HPLC and GC. Applications of UV-visible, IR, NMR spectroscopy and Mass spectrometry in the structural determination of organic molecules. (Organic Chemistry, Chemistry) with answers and explanations, from every paper.
- GATE 2026 CY Q37 – Match protons in compound X (Column M) with chemical shifts (Column N). Column M Column N --- --- P: Ha I: 7.00 (ddd, J = 8.4, 7.3, 1.4 Hz, 1H) Q: Hb…
- GATE 2026 CY Q57 – Consider the following reaction sequence, where A and B are the major products. In proton-decoupled 13C NMR spectra, the total number of carbon…
- GATE 2025 CY Q16 – In the 1H-NMR spectrum of the following molecule, the signal of proton H a appears as
- GATE 2025 CY Q24 – Compound(s) that show(s) an intense peak at m/z 120 in the EI mass spectrum is/are
- GATE 2025 CY Q42 – Compound K has a strong IR band at 1680 cm−1. Its 1H NMR data: (ppm) 7.30 (d, J = 7.2 Hz, 2H), 6.8 (d, J = 7.2 Hz, 2H), 3.8 (septet, J = 7.0 Hz, 1H),…
- GATE 2024 CY Q16 – The major product in the given reaction sequence is Q. The mass spectrum of Q shows ([M] = molecular ion peak)
- GATE 2024 CY Q32 – 1H NMR spectrum of a mixture containing CH 3Br (x mol) and (CH 3) 3CBr (y mol) shows two singlets at 2.7 ppm and 1.8 ppm, with the relative ratio of…
- GATE 2024 CY Q40 – Consider the following 1H-NMR (400 MHz, DMSO-d 6) data of a compound: in ppm: 3.85 (s, 6H), 6.73 (t, J=2.2 Hz, 1H), 7.1 (d, J=2.2 Hz, 2H), and 13.05…