Consider the expected splitting of the C2 proton signal in the 1H NMR spectrum of 2-ethyl-1,3-propanediol. Presuming that the coupling constants for neighboring protons are sufficiently different, and that the instrument has sufficient resolving power, what is the theoretical multiplicity of the C2 proton signal? a. 12
b. 15
c. 0
d. 6

Seven

Explanation:

In this case, in the middle carbon; (carbon 2) we have 3 neighbors. In the left and right carbon, we have 4 hydrogens in total. In the top carbon, we have 2 hydrogens also, so, in total, we have 6 hydrogens. If we follow the n+1 rule, we will have:

n= 6

signals= n + 1 = 6 + 1 = 7

So, we will have a signal of 7 (a septet).

See figure 1

I hope it helps!

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.