Identifying unknown substances

Compound A (C7H14O) burned with a yellow, nonsooty flame and did not decolorize a bromine-methylene chloride solution. It did give a positive 2,4-dinitrophenylhydrazine test, but a negative Tollens test. Treatment of the compound with lithium aluminum hydride followed by neutralization with acid, produced a Compound B, which gave a positive Lucas test in about 5 minutes. Compound B also gave a positive ceric nitrate test. The H NMR spectrum for Coumpound A gave the following data:

1.02 ppm  9H, singlet
2.11 ppm  3H, singlet
2.31 ppm  2H, singlet

Give Suitable structures for compound A and B.