Chemistry
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE CY 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 34–36 of 65. Imported answers require review unless explicitly marked reviewed.
Question 24
Open questionCYNAT1 markNeeds review
In the ¹H NMR spectrum of an organic compound recorded on a 300 MHz instrument, a proton resonates as a quartet at δ 4.20 ppm. The individual signals of the quartet appear at δ 4.17, 4.19, 4.21 and 4.23 ppm. The coupling constant J in Hz is _____.
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Open questionCYNAT1 markNeeds review
In the electron ionization (EI) mass spectra, methyl hexanoate, methyl heptanoate and methyl octanoate give the same base peak. The m/z value of the base peak is _____.
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Open questionCYMCQ2 marksNeeds review
In the following reaction,
Your answerChoose one option.
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