Identify the error in the following chair structure. A The...

Identify the error in the following chair structure. A The axial bromine is pointing in the wrong direction Br F B The axial fluorine is pointing in the wrong direction. C Cl CH$_3$ D The equatorial chlorine is pointing in the wrong direction. The equatorial methyl group is pointing in the wrong direction.

Transcript

00:03 Alright, so based on this chair structure, the chair confirmation, we want to know which of the following statements is true.

00:10 So what's important to know is what positions are axial and equatorial.

00:14 So if we look at each peak and fall, this is considered a peak.

00:21 This is a peak, peak, peak, peak, peak, peak, so where each carbon atom is present.

00:28 If the peak is pointing up, like here, here, and here, then the atom that is pointing up is considered axial.

00:42 So up, up, and there would be something pointing up there.

00:47 It's just not shown.

00:49 So each of those atoms are considered axial.

00:52 If we look at the peaks that are facing downwards, so down, down, and down, then each of the atoms pointing down on those are considered axial.

01:01 So you can think whatever direction that the atom is pointed, if it matches the direction of the peak, it's axial.

01:10 So down and down is axial, and up and up is also axial.

01:14 Anything else is equatorial.

01:16 So if we have an upward peak and it's coming out to the side, it's equatorial.

01:20 If we have a downward peak, it's coming up into the side, it is equatorial.

01:25 So now using that information, let's look at our choices.

01:29 So first choice is that bromine is axial.

01:36 So if we look, bromine is here.

01:41 It's on a peak that's pointing up.

01:43 And so we would expect bromine to be pointing up straight up as well if it's axial.

01:48 But instead we have deuterium pointing straight up...

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