`I_(2)` and ` F_(2)` are added toa asolution containing 1M each of `I^(-) and F^(-)`. What reaction will take place? Given that the reduction potential of `I_(2) and F_(2)` are 0.54 volt and 2.87 volts respectively.

Br_(2) and I_(2) are added to a solution containing 1M each of Br^(c-) and I^(c-) . What reaction will occur ?

Cl_(2) and F_(2) are added to a solution containing 1M eaCHM of Cl^(c-) and Br^(c-) . What reaction will occur ?

I2 and Br2 are added to a solution containing Br– and I– ions. What reaction will occur if, I_(2) + 2e^(-) rarr 2I^(-) , E^(0) = + 0.54V and Br_(2) + 2e^(-) rarr 2Br^(-) , E^(0) = +1.09 V?

Three uncharged capacitors of capacitance C_(1)=1mu F, C_(2)=2mu F and C_(3)=3mu F are connected as shown in the figure. The potential of point A, B and D are 10 volt, 25 volt and 20 volt respectively. Determine the potential at point O.

Initially both blocks are at rest on a horizontal surface and string is just tight. At t=0, two constant horizontal force F_(1) and F_(2) start acting on blocks as shown. f_(1) and f_(2) are frication foces acting on 10 kg and 20 kg block (co-efficient of frication between and ground are 0.5 ). Values of F_(1) and F_(2) are given column-I. Then match magnitudes of f_(1), f_(2) and direction of overset(vec)(f_(1)) with corresponding values of F_(1) and F_(2) given in column-I [g = 10 m//s^(2)] .