Question

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Answer 1

Explanation:

19)At the molecular level, molecules which have an incompletely filled set of bonding molecular orbitals are considered to be electron-deficient. Thus, CH3 and BH3 are electron-deficient, while methane (CH4) and diborane (B2H6) are not.

20)propane-1,2,3-triol

The IUPAC name for glycerol is 1, 2, 3- Trihydroxypropane or 1, 2, 3- Propanetriol. Its molar mass is 92.09 g mol^-1. The molecule is a 3 carbon chain, which has 3 hydrogen substituted by 3 hydroxyl group (-OH).

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