The major organic product(s) that result(s) from reacting H2C=CHBrr with magnesium, then propyne, then formaldehyde, then mild aqueous acid, is: (b) a mixture 2-propen-1-ol and propyne. (c) a mixture of ethene, propyne, 2-buty-1-ol. (d) a mixture of 1-penten-3 propye, and formaldehyde. 10. Tertiary alcohols can be forme-yne and formaldehyde. (a) primary organ be formed by mixing: (b) secondary orgametallics (like ethyllithium) with ketones. (c) secondary organometallics (like cyclopentyllithium) with aldehydes. (d) both a and c