Answer:A and B
Explanation:
A substance is said to be polar when it is having a dipole (a delocalised positive and negative charge) or it is ionic (dissociate into ions when dissolved in water)
Answer:
The most common oxidation states of manganese are 2+, 3+, 4+, 6+, and 7+.
The ¹H-NMR of 1-Butanol is shown below,
There are
Five signals found in the proton NMR spectrum of 1-Butanol.
A
Broad Singlet signal at ≈
4.7 ppm (Down Field = More Deshielded) is for proton directly attached to Oxygen atom.
Triplet Signal at ≈
3.65 ppm (Down Field = Deshielded) is for methylene group directly attached to Oxygen atom.
Multiplet Signal at ≈
1.6 ppm is for methylene which is present between two methylene groups. The shielding effect is increasing as moving away from Oxygen atom.
Multiplet Signal at ≈
1.4 ppm is for methylene which is present between terminal methyl and methylene groups. The shielding effect is increasing as moving away from Oxygen atom.
Triplet Signal at ≈
0.9 ppm (Up Field = Most Shielded) is for terminal methyl group attached to methylene group.
Result: Five Signals are found in the ¹H-NMR of 1-Butanol.
15.0+55.5=70.5-505=-434.5
I'm not sure