orgo question

[ippie]

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picture attached. Please, check the picture first.
Could you let me know how many signals and splittings are in each hydrogen?

 

[bigstix808]

1) 1-single, 2-nothing, 3-single, 4-single

2) one single and one triple (symetry)

3) 1-triple, 2-quad (symetry)

for 2) and 3) the symetry will be reflected in the proportions of area under the curves