7. If a certain hydrocarbon molecule has 10 carbons atoms, one ring and two triple bonds, how many hydrogens does it have? (A) 10 (B) 12 (C) 14 (D) 16 (E) 18

13. When 3-methyl-2-pentene is treated with mercuric acetate, $\mathrm{Hg(O_2CCH_3)_2}$, in a THF-$t$-butyl alcohol mixture and the resulting product is reacted with $\mathrm{NaBH_4}$ in basic solution, the principal product formed is which of these? (A) 3-methyl-3-pentanol (B) 3-$t$-butoxy-3-methylpentane (C) 3-methyl-2-pentanol (D) 2-$t$-butoxy-3-methylpentane (E) 1-$t$-butoxy-3-methylpentane

7. If a certain hydrocarbon molecule has 10 carbons atoms, one ring and two triple bonds, how many hydrogens does it have?
(A) 10
(B) 12
(C) 14
(D) 16
(E) 18

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