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Ask iit jee aieee pet cbse icse state board community Community Discussion Question: chemical bonding
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heavensblaze (2)

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which of the following has the highest dipole moment:


 


CH3Cl


CHCl3


CH2Cl2


CCl4

    
a_JOSHI (172)

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i think it will b chcl3 and then chcl3 and then ch2cl2 and then ccl4
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heavensblaze (2)

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Well JOSHI even i opted for chcl3 but it is not the correct ans.
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x4 (300)

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yes friends it shud be ccl4 the reason is that it is not a linear molecule its a 3-d tetrahedral shape .

in all the 4 compounds carbon atomis sp3 hybridised meaning they are all tetrahedral in shape so more the number of electron withdrawing groups higher the dipole moment .

hope u get it . allways remember this fact that u cant visualize the molecule to be planar . its 3 dimensonal .

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kashyap6552 (168)

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chemical bonding

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danny_007 (46)

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yes its CH2Cl2 i guess



CCl4 has 0 dipole moment

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kashyap6552 (168)

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All the above compounds are tetrahedral in shape. Since the dipole moment of a bond is aligned parallel to that bond, we have a tetrahedron of dipoles.

If all the dipoles are equal, they will cancel out if arranged tetrahedrally, that happens in CCl4, it has a 0 dipole moment.

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kashyap6552 (168)

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its chcl3

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kashyap6552 (168)

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plz rate me if i m correct...thanks

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svj29 (1860)

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@ X4, dude ya have confused dipole moment with bond moment.

Dipole moment is a vector quantity and if any molecule has tetrahedral shape and all four atoms attached are same, then there will be high bond moment, but 0 dipole moment.

as per the answer is concerned it is CH2Cl2...

i tried to configure out the reason, but ended up with the conclusion that, this is an exception.
even if you'll get a answer to this question, the concept can't be applied on other questions.

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shubhamranker (0)

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ANS IS A
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shubhamranker (0)

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BECAUSE IN OTHER ATOM MORE NO. OF CL ATOM MEANS CORBON POSITIVE CHARGE IS SHARE WITH MORE CL ATOM THAN DIPOLE MOMEN DECREASE
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svj29 (1860)

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its CH2Cl2

PROGRESS ISN'T MADE BY EARLY RISERS OR HARD WORKERS, BUT BY LAZY PEOPLE TRYING TO FIND EASIER WAY TO DO THE SAME.....SO BE LAZZZZYY!!!!
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ramratan (0)

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chcl3
ccl4 has zero dipole
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srujana (3045)

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Similar to


http://www.goiit.com/posts/list/organic-chemistry-among-i-ch3cl-ii-chcl3-which-molecule-has-69609.htm


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