Is the answer for Q1 correct if not please tell me And what the answer forQ2?

1. A compound exhibits a strong, stong band in its IR spectrum cantered about 1705cm1 and two bands at 2850 and 2740. Which type compound is more likely to be? 1705cm1C=0,2850=alkane,2740= aldehyde 2. An unknown compound gave the following NMR spectrum: (2.5, triplet, 3H; 3.5, quarted, 2H; 7.4-7.6, doublet of doublet, 4H) What is the structure of the compound? (molecular formula: C92H10OBr)=2(29)+2101=218+2101=29 Hint: strong band in its IR spectrum cantered about 1705cm1