Answer if the each of the following statements is true (T) or false (F). The nam
ID: 506897 • Letter: A
Question
Answer if the each of the following statements is true (T) or false (F). The name of CH_2-CHCH_2Na is propylsodium. Ethyl bromide is more reactive than Ethyl chloride to react with Mg. Organozinc reagent ICH_3Znl is a useful reagent to prepare cyclopentane compounds from alkenes and CH_2Cl_2. Organocopper reagents are unique reagents to form alkanes. Platinum-catalyzed cross-coupling reactions to form biphenyls are known separately as the Stille, Negishi Suzuki and Heck couplings. The difference in energy Delta E of two nuclear spin states is inversely proportional alto the strength of the applied magnetic field. In NMR, the dependence of the resonance position of a nucleus that results from molecular environment is called chemical shift. In NMR, an external magnetic field affects the motion of the electrons in a molecule and the induced magnetic field of the electrons in the carbon-hydrogen bond reinforces the external magnetic field. Infrared spectroscopy is a useful tool to determine presence of some of unique functional groups in a molecule. From a biochemical perspective, the most important oxidation is the conversion of thiols to sulfoxides.Explanation / Answer
1. False
The correct name is Sodium prop-2-en-1-ide.
2. True
Reactivity of alkyl halides are as follows
R-I > R-Br > R-Cl > R-F
3.False
Simmons–Smith reaction is an organic cheletropic reaction involving an organozinc carbenoid that reacts with an alkene (or alkyne) to form a cyclopropane.
4. False
Not alkane (but aryl compound)
The Ullmann reaction or Ullmann coupling is a coupling reaction between aryl halides and copper.
5. False
This all are name reactions which uses palladium catalyst not platinum catalyst.
6. False
The resonance frequency of a particular substance is directly proportional to the strength of the applied magnetic field.
7. True
Its what chemical shift means.
9. True
IR spectroscopy is used to determine functional groups in the molecule.