Examlex
Deduce the identity of the following compound from the spectral data given.
C4H6O2 : 1H NMR,δ 2.28 (2H,multiplet),2.50 (2H,triplet),4.35 (2H,triplet); 13C NMR,δ 177.81 (singlet),68.58 (triplet),27.70 (triplet),22.17 (triplet)(ppm)
Encryption
The process of converting data or information into code to prevent unauthorized access.
Lottery Servers
Computer systems or hardware that manage and operate lottery games, ensuring secure and fair drawing of winners.
Empirical Research
The study and collection of data through direct and indirect observation or experience.
Warranted
Describes an inference or argument such that the truth of the premises justifies or strongly supports confidently accepting the conclusion as very probably true, but not necessarily true.
Q20: Which of the following compounds has the
Q25: In the lab,a student tried to prepare
Q27: Name the alkyne products that result when
Q35: Provide the structure of the alkene that
Q58: A student proposed the following synthesis.Why did
Q68: Provide the structure of cyclohexanone oxime.
Q72: What is the common name for the
Q79: Vitamin C,shown below,is an antioxidant that undergoes
Q99: Which of the following methods can be
Q120: The reaction Br<sub>2</sub> + CH<sub>3</sub>Br → CH<sub>2</sub>Br<sub>2</sub>