i got B, C, B, A, B. Is that correct?

What is the major organic product obtained from the following reaction? D What is the major organic product obtained from the following reaction? HH2NNH2 A What is the major organic product obtained from the following reaction? A. 2-methyl-2-heptene B. 3-ethyl-2-pentene C. (Z) 2-methyl-3-heptene D. (E) 2-methyl-3-heptene Which combination(s) of alkyl bromide and carbonyl compound can be used to prepare the following product by addition of the Grignard reagent derived from the alkyl bromide to the carbonyl compound? A. only 1 and 2 B. only 3 and 4 C. only 2 and 3 D. only 1,2 and 3 Which combination(s) of alkyl bromide and carbonyl compound can be used to prepare the following product by reaction of the Wittig reagent derived from the alkyl bromide with the carbonyl compound? CH3CH2CHBrCH3 A. only 1 and 2 B. only 2 and 4 C. only 2 and 3 D. only 1,2 and 3