# Chapter 9: VSEPR model

**Question 1.** What is the hybridization of $H_2O$  
A. $sp$  
B. $sp^2$  
C. $sp^3$  
D. $sp^3d$  
E. $sp^3d^2$  

**Question 2.** What is the hybridization of $H_2O_2$  
A. $sp$  
B. $sp^2$  
C. $sp^3$  
D. $sp^3d$  
E. $sp^3d^2$  

**Question 3.** What is the hybridization of $SO_4^{2-}$  
A. $sp$  
B. $sp^2$  
C. $sp^3$  
D. $sp^3d$  
E. $sp^3d^2$  

**Question 4.** What is the hybridization of $ClF_5$  
A. $sp$  
B. $sp^2$  
C. $sp^3$  
D. $sp^3d$  
E. $sp^3d^2$  

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# Chapter 9: Hybrid orbital

**Question 1.** Predict the molecular geometry of $SeCl_2$  
A. Linear  
B. Bent  

**Question 2.** Predict the molecular geometry of $CO_3^{2-}$  
A. Trigonal planar  
B. Trigonal pyramidal  
C. T-shape  

**Question 3.** Predict the approximate values for the $Cl - O - H$ bond angle in $HClO_2$  
$$\ddot{O} = \ddot{Cl} - \ddot{O} - H$$  
A. Slightly greater than 120  
B. Slightly smaller than 109.5  
C. Approximately 180