Part A What is the value of the bond angles in CCl4? get in the bond angle of the molecule. Part B What is the worth of the smallest bond edge in ClF4- ? enter the the smallest bond angle of the molecule. Part C What is the worth of the bond angle in COH2? get in the bond edge of the molecule. Component D What is the value of the bond edge in ICl2- ? get in the bond edge of the molecule.

The ide used to fix this trouble is based on the Valence shell Electron Pair Repulsion theory.

The VSEPR theory is used to suspect the shape of the molecule with the assist of variety of electrons pair surrounding the main metal atom.

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By predicting the shape of molecule, bond deserve to be predicted.


For predicting the form of molecule by making use of VSEPR theory, it is essential to attract Lewis framework of the molecule.

Lewis structure have the right to be drawn by counting the total variety of valence electrons in the molecule. The rule for illustration Lewis structure are as follow.

First compose the framework of the compound by put bonding atoms alongside each other. The the very least electronegative atom occupies the main position.

Count the total number of valence electron in the molecule. Add the number of negative charge come the total variety of valence electrons and also subtract the number of positive charge from total variety of valence electrons.

Complete the octets the the atom bonded to main atom.


(1)

The atomic variety of chlorine and carbonare17 and6. The number of valence electron presentare 7 and also 4 respectively. Yet there are 4chlorine atoms. So, total number of valence electrons in chlorine room 28. Thus, total variety of valence electrons space 32. These electrons are dispersed in such a means that every atom has finish octet.

The Lewis structure of CCl4\rmCC\rml_4CCl4​ is drawn as follows:

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Now, follow to the VSEPR theory, the molecule with central atom bonded to four electron groups has the tetrahedral shape. For tetrahedral shape, the shortcut angles between atoms are 109.5∘109.5^ \circ 109.5∘ .

(2)

The atomic variety of chlorine and also fluorine room 17 and 9. The number of valence electrons present in both atoms room 7. However there room 4 fluorine atoms. So, total variety of valence electrons in fluorine space 28. Also, over there is a an adverse charge. Thus, total variety of valence electrons are 36. These electrons are distributed in together a way that every atom has complete octet.

The Lewis structure of ClF4−\rmClF_4^ - ClF4−​ is drawn as follows:

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Now, according to the VSEPR theory, the molecule with central atom bonded to six electron teams has the square planar shape. Because that square planar shape, the bond angles between atoms room 90∘90^ \circ 90∘ .

(3)

The atomic number of carbon and oxygen are 6 and 8. The number of valence electrons existing are 4 and also 6 respectively.Also, there room two hydrogen atoms. Thus, total number of valence electrons room 12. These electrons are dispersed in such a method that every atom has complete octet.

The Lewis framework of COH2\rmCO\rmH_2COH2​ is attracted as follows:

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Now, follow to the VSEPR theory, the molecule with main atom bonded to three electron groups has the trigonal planar shape. For trigonal planar shape, the bond angles between atoms are 120∘120^ \circ 120∘ .

(4)

The number of valence electrons current in iodine and chlorine are 7 and 7 respectively. Yet there space two chlorine atoms. Thus, total number of valence electrons room 22. These electrons are spread in such a means that every atom has finish octet.

The Lewis structure of ICl2−\rmICl_2^ - ICl2−​ is attracted as follows:

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Now, according to the VSEPR theory, the molecule with central atom external inspection to 5 electron teams has the direct shape. For linear shape, the bond angles between atoms room 180∘180^ \circ 180∘ .

Ans: part 1

The bond edge of CCl4\rmCC\rml_4CCl4​ molecule is 109.5∘109.5^ \circ 109.5∘ .

Part 2

The bond angle of ClF4−\rmClF_4^ - ClF4−​ molecule is 90∘90^ \circ 90∘ .

Part 3

The bond angle of COH2\rmCO\rmH_2COH2​ molecule is 120∘120^ \circ 120∘ .

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Part 4

The bond edge of ICl2−\rmICl_2^ - ICl2−​ molecule is 180∘180^ \circ 180∘ .