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Chemical Bonding And Molecular Structure

Question
CBSEENCH11008357
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In which one of the following species the central atom has the type of hybridisation which si not the same as that present in the other three? 

  • SF4

  • I3-

  • SbCl52-

  • PCl5

Solution

C.

SbCl52-

Molecules having the same number of hybrid orbitals, have same hybridization and number of hybrid orbitals,

straight H space equals space 1 half left square bracket space straight V space plus space straight X space minus space straight C space plus straight A right square bracket space equals space 5 where comma space straight V space equals space no. space of space valence space electrons space of space central space atom straight X space equals space no. space of space monovalent space atoms straight C space equals space charge space on space cation straight A space equals space Charge space on space anion straight a right parenthesis space In space SF subscript 4 space straight H space equals space 1 half space left square bracket space 6 plus 4 minus 0 plus 0 right square bracket space equals space 5 straight b right parenthesis space In space straight I to the power of minus subscript 3 space straight H space equals space 1 half space left square bracket space 7 space plus space 2 space plus space 1 space right square bracket straight c right parenthesis space In space SbCl subscript 5 to the power of negative 2 end exponent space straight H space equals space 1 half left square bracket space 5 space plus 5 plus 2 right square bracket space equals space 6 straight d right parenthesis space In space PCl subscript 5 straight H space equals space 1 half space left square bracket space 5 plus space 5 plus 0 minus 0 right square bracket space equals space 5
Since, only SbCl52- has a different number of hybrid orbitals (i.e,6) from the other given species, its hybridization is different front the others, ie, sp3d2.

Some More Questions From Chemical Bonding and Molecular Structure Chapter

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What bond is present in MgCl2 molecules?

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A = 1s22s22p63s2 and B = 1s22s22p5
Write the empirical formula of the substance containing A and B.

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(i) a metal and a non-metal
(ii) a non-metal and another non-metal?

Give reasons in one or two sentences for the observation that in their compounds non-metals form anions and not cations.

Out of Na and K, which will form a more stable ionic bond?

Which will have a greater lattice enthalpy: NaCl or MgO?

Is  a covalent molecule always formed between two similar atoms?

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