19885
Which of the following metals will give \({H_2}\) on reaction with \(NaOH\)
1 \(Mg\)
2 \(Ba\)
3 \(Ca\)
4 \(Sr\)
Explanation:
It’s obvious.
ELECTROCHEMISTRY
19886
Which of the following is not a non electrolyte
1 Acetic acid
2 Glucose
3 Ethanol
4 Urea
Explanation:
(a)The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.
ELECTROCHEMISTRY
20033
In the reaction\(Cu(s) + 2A{g^ + }(aq) \to C{u^{2 + }}(aq) + 2Ag(s)\) The reduction half-cell reaction is
1 \(Cu + 2{e^ - } \to C{u^{2 - }}\)
2 \(Cu - 2{e^ - } \to C{u^{2 + }}\)
3 \(A{g^ + } + {e^ - } \to Ag\)
4 \(Ag - {e^ - } \to A{g^ + }\)
Explanation:
\(Cu\) is getting oxidised and \(Ag ^{+}\) is getting reduced \(\therefore\) The reduction half-cell is \(Ag ^{+}+ e ^{-} \rightarrow Ag\)
ELECTROCHEMISTRY
19887
Amount of electricity that can deposit \(108\) gm of silver from \(AgNO_3\) solution is
19888
When \(9.65\) coulombs of electricity is passed through a solution of silver nitrate (atomic weight of \(Ag = 107.87\) taking as \(108\)) the amount of silver deposited is ............ \(\mathrm{mg}\)
19885
Which of the following metals will give \({H_2}\) on reaction with \(NaOH\)
1 \(Mg\)
2 \(Ba\)
3 \(Ca\)
4 \(Sr\)
Explanation:
It’s obvious.
ELECTROCHEMISTRY
19886
Which of the following is not a non electrolyte
1 Acetic acid
2 Glucose
3 Ethanol
4 Urea
Explanation:
(a)The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.
ELECTROCHEMISTRY
20033
In the reaction\(Cu(s) + 2A{g^ + }(aq) \to C{u^{2 + }}(aq) + 2Ag(s)\) The reduction half-cell reaction is
1 \(Cu + 2{e^ - } \to C{u^{2 - }}\)
2 \(Cu - 2{e^ - } \to C{u^{2 + }}\)
3 \(A{g^ + } + {e^ - } \to Ag\)
4 \(Ag - {e^ - } \to A{g^ + }\)
Explanation:
\(Cu\) is getting oxidised and \(Ag ^{+}\) is getting reduced \(\therefore\) The reduction half-cell is \(Ag ^{+}+ e ^{-} \rightarrow Ag\)
ELECTROCHEMISTRY
19887
Amount of electricity that can deposit \(108\) gm of silver from \(AgNO_3\) solution is
19888
When \(9.65\) coulombs of electricity is passed through a solution of silver nitrate (atomic weight of \(Ag = 107.87\) taking as \(108\)) the amount of silver deposited is ............ \(\mathrm{mg}\)
19885
Which of the following metals will give \({H_2}\) on reaction with \(NaOH\)
1 \(Mg\)
2 \(Ba\)
3 \(Ca\)
4 \(Sr\)
Explanation:
It’s obvious.
ELECTROCHEMISTRY
19886
Which of the following is not a non electrolyte
1 Acetic acid
2 Glucose
3 Ethanol
4 Urea
Explanation:
(a)The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.
ELECTROCHEMISTRY
20033
In the reaction\(Cu(s) + 2A{g^ + }(aq) \to C{u^{2 + }}(aq) + 2Ag(s)\) The reduction half-cell reaction is
1 \(Cu + 2{e^ - } \to C{u^{2 - }}\)
2 \(Cu - 2{e^ - } \to C{u^{2 + }}\)
3 \(A{g^ + } + {e^ - } \to Ag\)
4 \(Ag - {e^ - } \to A{g^ + }\)
Explanation:
\(Cu\) is getting oxidised and \(Ag ^{+}\) is getting reduced \(\therefore\) The reduction half-cell is \(Ag ^{+}+ e ^{-} \rightarrow Ag\)
ELECTROCHEMISTRY
19887
Amount of electricity that can deposit \(108\) gm of silver from \(AgNO_3\) solution is
19888
When \(9.65\) coulombs of electricity is passed through a solution of silver nitrate (atomic weight of \(Ag = 107.87\) taking as \(108\)) the amount of silver deposited is ............ \(\mathrm{mg}\)
19885
Which of the following metals will give \({H_2}\) on reaction with \(NaOH\)
1 \(Mg\)
2 \(Ba\)
3 \(Ca\)
4 \(Sr\)
Explanation:
It’s obvious.
ELECTROCHEMISTRY
19886
Which of the following is not a non electrolyte
1 Acetic acid
2 Glucose
3 Ethanol
4 Urea
Explanation:
(a)The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.
ELECTROCHEMISTRY
20033
In the reaction\(Cu(s) + 2A{g^ + }(aq) \to C{u^{2 + }}(aq) + 2Ag(s)\) The reduction half-cell reaction is
1 \(Cu + 2{e^ - } \to C{u^{2 - }}\)
2 \(Cu - 2{e^ - } \to C{u^{2 + }}\)
3 \(A{g^ + } + {e^ - } \to Ag\)
4 \(Ag - {e^ - } \to A{g^ + }\)
Explanation:
\(Cu\) is getting oxidised and \(Ag ^{+}\) is getting reduced \(\therefore\) The reduction half-cell is \(Ag ^{+}+ e ^{-} \rightarrow Ag\)
ELECTROCHEMISTRY
19887
Amount of electricity that can deposit \(108\) gm of silver from \(AgNO_3\) solution is
19888
When \(9.65\) coulombs of electricity is passed through a solution of silver nitrate (atomic weight of \(Ag = 107.87\) taking as \(108\)) the amount of silver deposited is ............ \(\mathrm{mg}\)
19885
Which of the following metals will give \({H_2}\) on reaction with \(NaOH\)
1 \(Mg\)
2 \(Ba\)
3 \(Ca\)
4 \(Sr\)
Explanation:
It’s obvious.
ELECTROCHEMISTRY
19886
Which of the following is not a non electrolyte
1 Acetic acid
2 Glucose
3 Ethanol
4 Urea
Explanation:
(a)The substances whose aqueous solutions allow the passage of electric current and are chemically decomposed, are termed electrolytes. Electrolytic substances are classified as strong or weak according to how readily they dissociate into conducting ions. Acetic acid is a weak electrolyte. Glucose, ethanol and urea are non-electrolytes.
ELECTROCHEMISTRY
20033
In the reaction\(Cu(s) + 2A{g^ + }(aq) \to C{u^{2 + }}(aq) + 2Ag(s)\) The reduction half-cell reaction is
1 \(Cu + 2{e^ - } \to C{u^{2 - }}\)
2 \(Cu - 2{e^ - } \to C{u^{2 + }}\)
3 \(A{g^ + } + {e^ - } \to Ag\)
4 \(Ag - {e^ - } \to A{g^ + }\)
Explanation:
\(Cu\) is getting oxidised and \(Ag ^{+}\) is getting reduced \(\therefore\) The reduction half-cell is \(Ag ^{+}+ e ^{-} \rightarrow Ag\)
ELECTROCHEMISTRY
19887
Amount of electricity that can deposit \(108\) gm of silver from \(AgNO_3\) solution is
19888
When \(9.65\) coulombs of electricity is passed through a solution of silver nitrate (atomic weight of \(Ag = 107.87\) taking as \(108\)) the amount of silver deposited is ............ \(\mathrm{mg}\)
