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In a hypothetical reaction X to Y, the activation energy for the forward and the backward reaction are 15 and 9" kJ mol"^(-1) respectively. The potential energy of X is 10" kJ mol"^(-1). Then

In a hypothetical reaction A to B the activation energies for the forward and backward reactions are 15 and 9kJ//mol respectively. The potential energy of A is 10kJ//mol, then

In a hypothetical molecule of PCl BrF_(3), choose the incorrect statement :

In a hydrogen - oxygen fuel cell, combustion of hydrogen occurs to

In a hydrogen-oxygen fuel cell, combustion of hydrogen occurs to

In a hydrogenoxygenfuel cellcombustion of hydrogen occurs to

In a hydrogen like specieselectrons is in 2^(nd)excited statethe binding energy of the fourth state of this species is 13.6 eV then

In a hydrogen atom if the energy of an electron in the ground state is 13.6eV then that in the second excited state is:

In a homogeneous reaction ArarrB +C+D , the initial pressure was P_0 and after time t is was P. Expression of rate constant in terms of P_0 , P and t will be

In a homogeneous reaction A rarr B + C + D, the initial pressure was P_(0) and after time t it was P. Expression for rate constant in terms of P_(0), P and t will be ………………………

In a homogeneous reaction A rarr B + C + D, the initial pressure was P_(0) and after time t it was P. expression for rate constant in terms of P_(0), P and t will be

In a hexagonal closest packing in two layers one above the other, the coordination number of each sphere will be

In a hexagonal closest packing in two layers one abovethe other, the coordiantion number of each sphere will be

In a H-like sample, electrons make transition from 4^(th) excited state upto 2^(nd) state. Then ,

In a hcp arrangement, each atom at the corner contributes to the unit cell equal to

In a group of the periodic table, the elements possess:

In a group of isomeric alkyl halides the order of boiling point is :

In a given shell, the screening effect of various orbitals is in the order :

In a given sample of bleaching power the percentage of available chlorine is 49 the volume of chlorine obtained if 10g of the sample is treated with HCl at NTP is

In a given period, the alkali metals have:

In a gaseous reaction of the type aA+ b B to c C + dD, (i)In a gaseous reaction of the type (ii) a mole of A combines with b moles of B to give C and D (iii) (axxM_(A)) g of a combines with (b xxM_(B)) g of B to give C and D (iv) a molecules of A combines with b molecules of B to give C and D

In a gaseous reaction of the type, , a A + b B to c C + d D,whichstatement is wrong ?

In a gaseous reaction A to B + C ,the pressure of A falls from 0.2 atm to 0.15 atm in one hour. Calculate the rate constant if it is a first-order reaction. What will be the pressure of A after 1.5 hours?

In a gaseous phase reaction A_(2)(g)toB(t)+1(1//2)C(g), the increase in pressure from 100 mm to 120 mm is noticed in 5 minute.The rate of disappearance of A_(2) in mm "min"^(-1) is

In a gaseous reaction 2P + QrarrProducts : Rate =k [P]^(2) [Q] The volume of the reaction vessel is suddenly reduced to half of its initial volume . The rate of eaction as compared to original rate becomes :

In a gaseous phase reaction: A_2(g)toB(g)+(1//2)C(g),), the increases in pressurefrom 100 mm to 120 mm is noticed in 5 minute. The total of disappearance of A_2 mm min^-1is : is:

In a galvanic cell,t he salt bridge

In a galvenic cell the direction of current is:

In a galvanic cell, which one of the following statements is not correct?

In a galvanic cell , which of the following statements is correct ?

Ina galvanic cell, which is wrong :

In a galvanic cell, the half-cell having more standard potential serves as ____terminal and that having less standard potential serves as ____terminal.

In a galvanic cell the following reaction takes place at 298^(@)K Cr_(2)O_(7)^(2-)+14H^(+)+6Fe^(2+)to2Cr^(3+)+6Fe^(3+)+7H_(2)O given that :E^(o)(Cr_(2)O_(7)^(2-),H^(+),Cr^(3+)//Pt)=1.33V E^(o)(Fe^(3+),Fe^(2+)//Pt)=0.77V. The standard e.m.f. of the cell is

In a galvanic cell, the salt bridge

In a galvanic cell, the following reaction: Zn(s)+2Ag^(2+)(aq)toZn^(2+)(aq)+2Ag(s),E_(cell)^(@)=1.50V (a) Is the direction of flow of electrons from zinc to silver or silver to zinc? (b) How will the concentration of Zn^(2+) ions and Ag^(+) ions be affected when the cell functions?

In agalvanic cell the eletrons flow from

In a galvanic cell, the electrons flow from ……………… .

In a galvanic cell, the electrons flow from

In a galvanic cell, the electrons flow from ……………

In a galvanic cell, the electrode which acts as anode is a_______ pole.

In a galvanic cell, the conventional current flows from _______to_______.

In a galvanic cell, the half-cell having more standard potential serves as terminal and that having less standard potential serves as terminal.

In a galvanic cell, the conventional current flows from _to_.