Q.

Number of lone pairs in perchlorate ion is/are ‘X’. Number of  dπ-pπ bonds in chlorate ion is/are ‘Y’. Difference between X and Y is

Moderate

Want to Fund your own JEE / NEET / Foundation preparation ??

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*
An Intiative by Sri Chaitanya

a

4

b

7

c

5

d

6

answer is B.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Number of electron pairs(EP)=V+M-C+A2; V=Group number of central atom; M=-H, -X, -OH....monovalent groups attached to central atom ; C=Charge of cation ; A=Charge of anion ; V=2,3.4,5,6,7,8 respectively for 2nd,13th,14th,15th, 16th,  17th, 18th group elements ; Number bond pairs, BP(according to VSEPR theory)=Number of atoms directly attached to central atom;                                                                                 =4,4,3,3 respectively in XeO4,ClO4- XeO3,,ClO3- ; ***According to VSEPR theory, double bond and triple bond are counted as one bond pair only ; If the bonded atom is Oxygen..... Magnitude of Oxidation state of central atom= Total bonds ; Number of atoms directly attached to central atom=sigma bonds ; Total bonds-sigma bonds = pi bonds ; Number lone pairs on central atom(LP)=EP-BP ;                                                              =0,0,1,1 respectively in XeO4,ClO4- XeO3,,ClO3-   ; XeO4-'4' bp +'0' lp on central atom ; sp3-Tetrahedral ; Total 8 lone pairs/molecule ;                                                                                          8 lone pairs on bonded atoms ;                                                                          ....Orientation of electron pairs....Tetrahedral ; ClO4--'4' bp +'0' lp on central atom ; sp3-Tetrahedral ; Total 9 lone pairs/ion ;                                                                                          9 lone pairs on bonded atoms ;                                                                          ....Orientation of electron pairs....Tetrahedral ; XeO3-'3' bp +'1' lp  on central atom ; sp3-Pyramidal; Total 7 lone pairs/molecule ;                                                                                          6 lone pairs on bonded atoms                                                                                     ....Orientation of electron pairs....Tetrahedral ; ClO3--'3' bp +'1' lp  on central atom ; sp3-Pyramidal; Total 8 lone pairs/ion ;                                                                                          7 lone pairs on bonded atoms                                                                                     ....Orientation of electron pairs....Tetrahedral ;                                                                  Note; Each double bonded oxygen atom has '2' lone pairs on it ;           Each single bonded oxygen atom has '3' lone pairs on it ; XeO4 : Magnitude of Oxidation state of central atom= Total bonds=8 ; Number of atoms directly attached to central atom=sigma bonds=4 ; Total bonds-sigma bonds = pi bonds=4--'0' pπ-pπ and '4' dπ-pπ bonds ; ClO4- : Magnitude of Oxidation state of central atom= Total bonds=7 ; Number of atoms directly attached to central atom=sigma bonds=4 ; Total bonds-sigma bonds = pi bonds=3--'0' pπ-pπ and '3' dπ-pπ bonds ; XeO3 : Magnitude of Oxidation state of central atom= Total bonds=6 ; Number of atoms directly attached to central atom=sigma bonds=3 ; Total bonds-sigma bonds = pi bonds=3--'0' pπ-pπ and '3' dπ-pπ bonds ; ClO3- : Magnitude of Oxidation state of central atom= Total bonds=5 ; Number of atoms directly attached to central atom=sigma bonds=3 ; Total bonds-sigma bonds = pi bonds=2--'0' pπ-pπ and '2' dπ-pπ bonds ;
ctaimg

Get Expert Academic Guidance – Connect with a Counselor Today!

+91

Connect with our

Expert Counsellors

access to India's best teachers with a record of producing top rankers year on year.

+91

We will send a verification code via OTP.

whats app icon