Chm 2045 Test 2 Form C Worksheet With Answers (Page 6 of 8) in pdf

Chm 2045 Test 2 Form C Worksheet With Answers Page 6

CHM 2045

Test 2

Form C

14. Which compound has the highest carbon-carbon bond strength?

A. CH

B. CH

C. HCCH

D. all bond strengths are the same

15. Which of the following describes sp

hybridzation?

A. Three orbitals are hybridized, one p-orbital remains unhybridized

B. Three orbitals are hybridized, one s-orbital remains unhybridized

C. Three orbitals are hybridized, no orbitals remain unhybridized

D. Four orbitals are hybridized, no orbitals remain unhybridized

E. Four orbitals are hybridized, one s-orbital remains unhybridized

16. Draw the Lewis structure for the molecule CH

CHCH

. How many sigma and pi bonds does

it contain?

A. 8 σ, 1 π

B. 9 σ, 0 π

C. 9 σ, 1 π

D. 7 σ, 2 π

E. 8 σ, 2 π

17. Which of the following describes the carbon in the best Lewis structure for HCN?

A. Carbon has two double bonds

B. Carbon has two single bonds and two lone pairs

C. Carbon has a single bond and a triple bond

D. Carbon has one single bond, one double bond, and one lone pair

E. Carbon has one single bond and three lone pairs

18. Which of the following describes the molecular geometry and polarity for XeO 3 ?

A. Trigonal planar and non-polar

B. Trigonal planar and polar

C. Trigonal pyramidal and non-polar

D. Trigonal pyramidal and polar

E. T-shape and polar

Chm 2045 Test 2 Form C Worksheet With Answers Page 6