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Solution


Q.

Which of the following pairs have similar shape
1 N(CH3)3, N(SiH3)3  
2 NF3, BF3  
3 SO3, CO32-  
4 CH4, XeF4  

Ans.

(3)

SO3 & CO32- Central atoms undergo sp2 hybridization with zero L.P. Hence, the shape is trigonal planar.