@Indranil when Oxidation number chnges frm +7 to +8 it has lost one electron so 1 electron transferred
Well in MnO2 Mn is in +4 Oxidation state
Is this the correct answer?
@You-Knowwhere @Alagoas firstly both tangents are perpendicular so their point of intersection lies on directrix
And if we see graphically then parabola equation will be X^2=4aY with some center (h,k)
U may have got Yn just Subtract them by putting different values of n
@You-Knowwhere As we go down the group bond dissociation enthalpy decreases ie bonds can be broken easily or H+ is released more easily so Acidic strength increases
@Siddhartha-Ghosh no angle between effective length and B is zero so cross product zero and so force also zero
@Siddhartha-Ghosh Yes with Anhydrous HI always SN2 takes place
It is also given in ncert
Is this the answer?
Since induced cahrge is independent of time taken to change flux so Q remains constant