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Shib Sagar posted an Question

August 02, 2020 • 16:10 pm

30 points

IIT JAM
Chemistry (CY)

Pz solve these 4 questions

der Waals forces act between the carbon layers denkt gehe

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Narayanarao gundoju Best Answer

27) HFO4 doesnot exist 28) except AlCl3 remaining all are contains coordinate bond 29) a,b,c are responsible for origination of van der waals forces 30) except option d) remaining options a, b, c are true
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Priyanshu kumar

diamond is composed entirely of carbon-carbon bonds and has no weak van der Waals forces that can break the structure apart easily....So shib option D is incorrect for ques 30...All the first three options are correct
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Any doubt shib??
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Suman Kumar

Q 27 option A SH6 does not exist
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Q 28 option B & D is correct
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Q 30 option B & C is correct
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sir fel3 is it exist
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I- is much larger in size, so has higher tendency to lose electron, and hence is a good reducing agent. I- reduces Fe3+ to Fe2+ and itself gets oxidised to I2, hence FeI3 is unstable. 2FeI3 ———> 2FeI2 + I2
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FeI3 also don't exist
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Shib did you get this dear
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Priyanshu kumar

https://byjus.com/chemistry/van-der-waals-forces/ for ques 29 read this..
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Shib all the first three options are the types of vanderwaals forces
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Dinesh khalmaniya 1

27) A
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sulphur is expected to show oxidation state of +6+6. This can happen in case two electrons from filled (3s and 3p) orbitals are promoted to vacant 3d orbitals. Only atoms of high electronegativity such as fluorine (4.0) can cause the promotion of electrons while the same is not possible with hydrogen with comparatively less electronegativity (2.1). Thus, SF6SF6 can exist while SH6SH6 cannot.
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28) C
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