Question

Complete the following table. This is an individual assignment. You may not obtain help from your group on the unknowns. Unknown Sets are listed on the back of this page. Molecular shape around central atom Molecule or ion Best Lewis Structure (Draw only one resonance form.) Polar? Does the molecule have any degenerate resonance forms? је Cl- Bent/veskeped yes Unknown 1 lyer que THCIN-NCH alve 2140 Unknown 2 nale NE Hel cor Je sue Unknown 3 Trigonel plano Tino | yes que be OCN- | Unknown 4:8-CEN linear ho ho Te CHEM 1050 Fall 2019 Experiment #1117

Answer 1

Regenerate Resonance structure:

In the molecule, If two resonance structure has equal energy is called a degenerate resonance structure.

1) In the first molecule ClO₂^- , the central atom chlorine is sp³ hybridised and which have two lone pair so the molecular shape is V-shape.

2) In the second molecule HClN-NClH, the central atom (N) is sp3 hybridised and which have one lone pair so the molecular shape is Trigonal Pyramidal.

3) In the third molecule CO₃^2- , the central atom carbon is sp² hybridised. The shape of the molecule is Trigonal planar.

4) In the fourth molecule OCN^- the central atom carbon is sp-hybridised. The shape is linear. Carbon bond with two different atoms (N.O) which makes OCN^- is polar compound. This compound has a resonance structure but they are not equal energy (not a degenerate).

Does the Moleuk or ion molecwe any Best Lewis Mdeua Shape Polar doganerate YasOnarca dom Structuie around Contal atom 0) yes yes -Shape :0:

Trigonal yes No 2) HUN-NUH pyraumidal

3 co 2 - Trigonal / yes No planav OCN :0-CEN Ne Lineay yRs