12 . is it b ??
1.the increasing order of ionisation enthalpies of B,P,F,S.
2.which has dp-dp as major interaction
a)benzene and ethanol
b)acetonitile and acetone
c)KCl ansd water
d)benzene and CCl4
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11 Answers
11. B<S<P<F
fluorine being most electronegative and small size so it has highest
P being with half filled orbital is 2nd
phir sulpur with 6 outer electrons have 3rd
boron with 3 outer electrons 4th
1now here is a twist in problem:::::
i came to know why u got confused boy!!!!
due to c right????
see in C it is ION-DIPOLE not DIPOLE-DIPOLE [1]
1nice answers guys
3.>the time taken by the photoelectron to come out after photon stikes is:__________
4.> The solid which is transparent to visible light and whose conductivity increases with temperature
a)metallic binding
B)ionic binding
C)covalent binding
d)dp-dp binding
39Yeah boulevard it's 10^(-9) seconds...factual thing. Time taken for the photoelectric current to reach saturation value is 10^(-9) seconds.
1NO NEED TO BE SORRY FOR THT 10^(-9) S :p[3][3][3][3]....THT IS MOST IDIOTIC QUESTION IF AIEEE EVER ASKED IT.............NO KNOWLEDGE RO CONCEPT INVOLVED[2].....HAD THEY ASKED IF IT IS INSTANTANEOUS......IT WUD HAVE STILL HAVE BEEN WORTH APPRECIATION[1]