20003
If equivalent conductance of \(1\,M\) benzoic acid is \(12.8\,oh{m^{ - 1}}c{m^2}\) and if the conductance of benzoate ion and \({H^ + }\) ion are \( 42 \) and \(288.42\,oh{m^{ - 1}}c{m^2}\) respectively. its degree of dissociation is ............. \(\%\)
20005
When electric current is passed through a cell having an electrolyte, the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution
1 The positive and negative ions will move towards the anode
2 The positive ions will start moving towards the anode, the negative ions will stop moving
3 The negative ions will continue to move towards the anode and the positive ions will stop moving
4 The positive and negative ions will start moving randomly
Explanation:
(d)In the absence of electric field the ions in the solution move randomly due to thermal energy.
ELECTROCHEMISTRY
20006
If the half cell reaction \(A + {e^ - } \to \,{A^ - }\) has a large negative reduction potential, it follows that
1 \(A\) is readily reduced
2 \(A\) is readily oxidised
3 \({A^ - }\) is readily reduced
4 \({A^ - }\) is readily oxidised
Explanation:
(d)Since \(E_{A/{A^ - }}^o\)has large negative value, the tendency of \(A\) to be reduced to \({A^ - }\) is very small. In other words tendency of \({A^ - }\)to be oxidized to \( A\) is very large.
20003
If equivalent conductance of \(1\,M\) benzoic acid is \(12.8\,oh{m^{ - 1}}c{m^2}\) and if the conductance of benzoate ion and \({H^ + }\) ion are \( 42 \) and \(288.42\,oh{m^{ - 1}}c{m^2}\) respectively. its degree of dissociation is ............. \(\%\)
20005
When electric current is passed through a cell having an electrolyte, the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution
1 The positive and negative ions will move towards the anode
2 The positive ions will start moving towards the anode, the negative ions will stop moving
3 The negative ions will continue to move towards the anode and the positive ions will stop moving
4 The positive and negative ions will start moving randomly
Explanation:
(d)In the absence of electric field the ions in the solution move randomly due to thermal energy.
ELECTROCHEMISTRY
20006
If the half cell reaction \(A + {e^ - } \to \,{A^ - }\) has a large negative reduction potential, it follows that
1 \(A\) is readily reduced
2 \(A\) is readily oxidised
3 \({A^ - }\) is readily reduced
4 \({A^ - }\) is readily oxidised
Explanation:
(d)Since \(E_{A/{A^ - }}^o\)has large negative value, the tendency of \(A\) to be reduced to \({A^ - }\) is very small. In other words tendency of \({A^ - }\)to be oxidized to \( A\) is very large.
20003
If equivalent conductance of \(1\,M\) benzoic acid is \(12.8\,oh{m^{ - 1}}c{m^2}\) and if the conductance of benzoate ion and \({H^ + }\) ion are \( 42 \) and \(288.42\,oh{m^{ - 1}}c{m^2}\) respectively. its degree of dissociation is ............. \(\%\)
20005
When electric current is passed through a cell having an electrolyte, the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution
1 The positive and negative ions will move towards the anode
2 The positive ions will start moving towards the anode, the negative ions will stop moving
3 The negative ions will continue to move towards the anode and the positive ions will stop moving
4 The positive and negative ions will start moving randomly
Explanation:
(d)In the absence of electric field the ions in the solution move randomly due to thermal energy.
ELECTROCHEMISTRY
20006
If the half cell reaction \(A + {e^ - } \to \,{A^ - }\) has a large negative reduction potential, it follows that
1 \(A\) is readily reduced
2 \(A\) is readily oxidised
3 \({A^ - }\) is readily reduced
4 \({A^ - }\) is readily oxidised
Explanation:
(d)Since \(E_{A/{A^ - }}^o\)has large negative value, the tendency of \(A\) to be reduced to \({A^ - }\) is very small. In other words tendency of \({A^ - }\)to be oxidized to \( A\) is very large.
20003
If equivalent conductance of \(1\,M\) benzoic acid is \(12.8\,oh{m^{ - 1}}c{m^2}\) and if the conductance of benzoate ion and \({H^ + }\) ion are \( 42 \) and \(288.42\,oh{m^{ - 1}}c{m^2}\) respectively. its degree of dissociation is ............. \(\%\)
20005
When electric current is passed through a cell having an electrolyte, the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution
1 The positive and negative ions will move towards the anode
2 The positive ions will start moving towards the anode, the negative ions will stop moving
3 The negative ions will continue to move towards the anode and the positive ions will stop moving
4 The positive and negative ions will start moving randomly
Explanation:
(d)In the absence of electric field the ions in the solution move randomly due to thermal energy.
ELECTROCHEMISTRY
20006
If the half cell reaction \(A + {e^ - } \to \,{A^ - }\) has a large negative reduction potential, it follows that
1 \(A\) is readily reduced
2 \(A\) is readily oxidised
3 \({A^ - }\) is readily reduced
4 \({A^ - }\) is readily oxidised
Explanation:
(d)Since \(E_{A/{A^ - }}^o\)has large negative value, the tendency of \(A\) to be reduced to \({A^ - }\) is very small. In other words tendency of \({A^ - }\)to be oxidized to \( A\) is very large.
20003
If equivalent conductance of \(1\,M\) benzoic acid is \(12.8\,oh{m^{ - 1}}c{m^2}\) and if the conductance of benzoate ion and \({H^ + }\) ion are \( 42 \) and \(288.42\,oh{m^{ - 1}}c{m^2}\) respectively. its degree of dissociation is ............. \(\%\)
20005
When electric current is passed through a cell having an electrolyte, the positive ions move towards the cathode and the negative ions towards the anode. If the cathode is pulled out of the solution
1 The positive and negative ions will move towards the anode
2 The positive ions will start moving towards the anode, the negative ions will stop moving
3 The negative ions will continue to move towards the anode and the positive ions will stop moving
4 The positive and negative ions will start moving randomly
Explanation:
(d)In the absence of electric field the ions in the solution move randomly due to thermal energy.
ELECTROCHEMISTRY
20006
If the half cell reaction \(A + {e^ - } \to \,{A^ - }\) has a large negative reduction potential, it follows that
1 \(A\) is readily reduced
2 \(A\) is readily oxidised
3 \({A^ - }\) is readily reduced
4 \({A^ - }\) is readily oxidised
Explanation:
(d)Since \(E_{A/{A^ - }}^o\)has large negative value, the tendency of \(A\) to be reduced to \({A^ - }\) is very small. In other words tendency of \({A^ - }\)to be oxidized to \( A\) is very large.
