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| 1. |
Arrange the following in decreasing order of basic strength. |
Answer» Solution :The BASIC character of these hydrides depends upon the STRENGTH of the ADDITIONAL element-hydrogen bond formed when the hydride accepts a proton.  On MOVING down the group, the size of the element increases and the strength of the E-H bond decreases. Consquently, the tendency of the hydride to ACCPET a proton decreases and hence the basic strength decreases down the group, i.e., `NH_(3)gtPH_(3)gtAsH_(3)gtSbH_(3)gtBiH_(3)`. |
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