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Document Preview: 1. Which of the following has square-planar molecular...

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Document Preview: 1. Which of the following has square-planar molecular geometry?SF4XeF4CCl2Br2CCl4PH32. Which of the following has a T-shaped structure?NH3BCl3ICl3PCl3SO33. Which series correctly identifies the hybridization of the central atom in a molecule of AlCl3?spsp2sp3sp3dsp3d24. The angle between two sp hybrid orbitals is:109°120°180°60°90°5. The fact that the BF3 molecule is planar means that the B atom is:unhybridizedsp-hybridizedsp3-hybridizedsp2-hybridized6. What type of hybrid orbitals are used by the carbon atoms in C2H6?d2sp3sp3sp2d2sp2sp7. How many valence electrons does an aluminum atom have?8. Consider a molecule of NI3.How many bonding electron pairs are there?In NI3, how many lone electron pairs are there?9. Using VSEPR, predict the shape of the following molecules:MoleculeShapecarbon tetrachloridemethaneSeH2TeF6MgCl2AlBr3IF5TeCl2BrF3PCl310. Why don't all molecules with the general atomic formula AB3 have the same shape?

David · Accepted Answer

1. Which of the following has square-planar molecular geometry? 
a. SF4 
b. XeF4 
c. CCl2Br2 
d. CCl4 
e. PH3 
Answer:-  For a molecule to have square planar  molecular geometry the hybridization should be sp3d2 and 
there should be two loan pairs on central atom and 4 atoms should be bonded to it. 
In SF4, 4 F atoms are bonded to S and S has one loan pair so it is not the right choice. In XeF4, 4F 
atoms are bonded to Xe and Xe has two loan pairs so it is correct choice. In CCl2Br2 and CCl4  four 
atoms are bonded to the central carbon atom so it is not the right one. In PH3, three H atoms are 
bonded to P and P has one loan pair so it is also not the right one. Hence the correct choice is (b). 
XeF4. 
2. Which of the following has a T-shaped structure? 
a. NH3 
b. BCl3 
c. ICl3 
d. PCl3 
e. SO3 
Answer:- For a molecule to have T-shaped structure there should be 3 bond pairs and two loan pairs. In NH3, N is the 
central atom with one loan pair and three H atoms are bonded to it. In BCl3, there is no loan pair on B 
and only three Cl are bonded to it. In ICl3, three Cl atoms are bonded to the central atom I and it has 
two loan pairs. So, it is the correct choice. PCl3 is same as NH3 and in SO3,

Please see attachment Document Preview: 1. Which of the following has square-planar molecular geometry? SF4 XeF4 CCl2Br2 CCl4 PH3 2. Which of the following has a T-shaped...

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