Which of the following atoms cannot exceed the octet rule in a molecule? a. CI b

Question

Which of the following atoms cannot exceed the octet rule in a molecule? a. CI b. O c. P d. S e. All of them can exceed octet Thionyl chloride is used as an oxidizing and chlorinating agent in organic chemistry. Select the best Lewis structure for SOCI_2, Which of the following molecules has a net dipole moment (polar)? a. BeCI_2 b. SF_2 c. KrF_2 d. CO_2 e. CCI_4 Write Lewis dot symbol for O^2-? Place the following in order of increasing size: K^+ Ca^2+ CI^- S^2- Ar Place the following in order of increasing bond length. P-Br P-Se P-O Place the following bonds in order of decreasing ionic character N-O C-O O-H H-F N-H

Explanation / Answer

1. b.O   (because in O-atom there is no d-orbital availbility)

2. C (it is having octet for all the atoms)

3. b (SF2 having bent shape and also polar bonds.so that it is polar)

4. O-2 = ON OXYGEN atom there were four pairs of electrons

5. Ca^2+ < K^+ < Ar < Cl-< S2-

6. H-F > O-H > N-H > C-O > N-O

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