Catalyst and Catalysis
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CHXII05:SURFACE CHEMISTRY

320680 An example for autocatalysis is

1 oxidation of \(\mathrm{NO}\) to \(\mathrm{NO}_{2}\)
2 oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\)
3 decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\)
4 oxidation of oxalic acid by acidified \(\mathrm{KMnO}_{4}\)
CHXII05:SURFACE CHEMISTRY

320681 Which of the following reactions is an example of auto catalysis?

1 \({\rm{2As}}{{\rm{H}}_{{\rm{3(s)}}}} \to {\rm{2A}}{{\rm{s}}_{{\rm{(s)}}}}{\rm{ + 3}}{{\rm{H}}_{{\rm{2(g)}}}}\)
2 \({{\text{N}}_{{\text{2(g)}}}}{\text{ + 3}}{{\text{H}}_{{\text{2(g)}}}}\xrightarrow{{{\text{F}}{{\text{e}}_{{\text{(s)}}}}}}{\text{2N}}{{\text{H}}_{{\text{3(g)}}}}\)
3 \({\text{2S}}{{\text{O}}_{{\text{2(g)}}}}{\text{ + }}{{\text{O}}_{{\text{2(g)}}}}\xrightarrow{{{\text{N}}{{\text{O}}_{{\text{(g)}}}}}}{\text{2S}}{{\text{O}}_{{\text{3(g)}}}}\)
4 \({{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}}\xrightarrow{{{{\text{H}}^{\text{ + }}}{\text{(l)}}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}{\text{ + }}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}\)
CHXII05:SURFACE CHEMISTRY

320682 Air can oxidise sodium sulphate in aq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containing both sodium sulphite & sodium arsenite then both are oxidised. This is an example of:

1 Positive catalysis
2 Negative catalysis
3 Induced catalysis
4 Auto catalysis
CHXII05:SURFACE CHEMISTRY

320683 An example of autocatalysis is

1 Decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\).
2 Oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\).
3 Formation of \(\mathrm{NH}_{3}\) by \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}\) in presence
of Fe.
4 Oxidation of oxalic acid by acidic \(\mathrm{KMnO}_{4}\).
CHXII05:SURFACE CHEMISTRY

320684 What is the catalyst used for oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\) in lead chamber process for manufacture of sulphuric acid?

1 Nitric oxide
2 Nitrous oxide
3 Potassium iodide
4 Dilute \(\mathrm{HCl}\)
MHTCET - 2018
NEET DIGITAL LIBRARY
CHXII05:SURFACE CHEMISTRY

320680 An example for autocatalysis is

1 oxidation of \(\mathrm{NO}\) to \(\mathrm{NO}_{2}\)
2 oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\)
3 decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\)
4 oxidation of oxalic acid by acidified \(\mathrm{KMnO}_{4}\)
CHXII05:SURFACE CHEMISTRY

320681 Which of the following reactions is an example of auto catalysis?

1 \({\rm{2As}}{{\rm{H}}_{{\rm{3(s)}}}} \to {\rm{2A}}{{\rm{s}}_{{\rm{(s)}}}}{\rm{ + 3}}{{\rm{H}}_{{\rm{2(g)}}}}\)
2 \({{\text{N}}_{{\text{2(g)}}}}{\text{ + 3}}{{\text{H}}_{{\text{2(g)}}}}\xrightarrow{{{\text{F}}{{\text{e}}_{{\text{(s)}}}}}}{\text{2N}}{{\text{H}}_{{\text{3(g)}}}}\)
3 \({\text{2S}}{{\text{O}}_{{\text{2(g)}}}}{\text{ + }}{{\text{O}}_{{\text{2(g)}}}}\xrightarrow{{{\text{N}}{{\text{O}}_{{\text{(g)}}}}}}{\text{2S}}{{\text{O}}_{{\text{3(g)}}}}\)
4 \({{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}}\xrightarrow{{{{\text{H}}^{\text{ + }}}{\text{(l)}}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}{\text{ + }}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}\)
CHXII05:SURFACE CHEMISTRY

320682 Air can oxidise sodium sulphate in aq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containing both sodium sulphite & sodium arsenite then both are oxidised. This is an example of:

1 Positive catalysis
2 Negative catalysis
3 Induced catalysis
4 Auto catalysis
CHXII05:SURFACE CHEMISTRY

320683 An example of autocatalysis is

1 Decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\).
2 Oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\).
3 Formation of \(\mathrm{NH}_{3}\) by \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}\) in presence
of Fe.
4 Oxidation of oxalic acid by acidic \(\mathrm{KMnO}_{4}\).
CHXII05:SURFACE CHEMISTRY

320684 What is the catalyst used for oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\) in lead chamber process for manufacture of sulphuric acid?

1 Nitric oxide
2 Nitrous oxide
3 Potassium iodide
4 Dilute \(\mathrm{HCl}\)
MHTCET - 2018
Join With Us for More Updates
CHXII05:SURFACE CHEMISTRY

320680 An example for autocatalysis is

1 oxidation of \(\mathrm{NO}\) to \(\mathrm{NO}_{2}\)
2 oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\)
3 decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\)
4 oxidation of oxalic acid by acidified \(\mathrm{KMnO}_{4}\)
CHXII05:SURFACE CHEMISTRY

320681 Which of the following reactions is an example of auto catalysis?

1 \({\rm{2As}}{{\rm{H}}_{{\rm{3(s)}}}} \to {\rm{2A}}{{\rm{s}}_{{\rm{(s)}}}}{\rm{ + 3}}{{\rm{H}}_{{\rm{2(g)}}}}\)
2 \({{\text{N}}_{{\text{2(g)}}}}{\text{ + 3}}{{\text{H}}_{{\text{2(g)}}}}\xrightarrow{{{\text{F}}{{\text{e}}_{{\text{(s)}}}}}}{\text{2N}}{{\text{H}}_{{\text{3(g)}}}}\)
3 \({\text{2S}}{{\text{O}}_{{\text{2(g)}}}}{\text{ + }}{{\text{O}}_{{\text{2(g)}}}}\xrightarrow{{{\text{N}}{{\text{O}}_{{\text{(g)}}}}}}{\text{2S}}{{\text{O}}_{{\text{3(g)}}}}\)
4 \({{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}}\xrightarrow{{{{\text{H}}^{\text{ + }}}{\text{(l)}}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}{\text{ + }}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}\)
CHXII05:SURFACE CHEMISTRY

320682 Air can oxidise sodium sulphate in aq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containing both sodium sulphite & sodium arsenite then both are oxidised. This is an example of:

1 Positive catalysis
2 Negative catalysis
3 Induced catalysis
4 Auto catalysis
CHXII05:SURFACE CHEMISTRY

320683 An example of autocatalysis is

1 Decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\).
2 Oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\).
3 Formation of \(\mathrm{NH}_{3}\) by \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}\) in presence
of Fe.
4 Oxidation of oxalic acid by acidic \(\mathrm{KMnO}_{4}\).
CHXII05:SURFACE CHEMISTRY

320684 What is the catalyst used for oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\) in lead chamber process for manufacture of sulphuric acid?

1 Nitric oxide
2 Nitrous oxide
3 Potassium iodide
4 Dilute \(\mathrm{HCl}\)
MHTCET - 2018
For More Updates join with Us
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CHXII05:SURFACE CHEMISTRY

320680 An example for autocatalysis is

1 oxidation of \(\mathrm{NO}\) to \(\mathrm{NO}_{2}\)
2 oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\)
3 decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\)
4 oxidation of oxalic acid by acidified \(\mathrm{KMnO}_{4}\)
CHXII05:SURFACE CHEMISTRY

320681 Which of the following reactions is an example of auto catalysis?

1 \({\rm{2As}}{{\rm{H}}_{{\rm{3(s)}}}} \to {\rm{2A}}{{\rm{s}}_{{\rm{(s)}}}}{\rm{ + 3}}{{\rm{H}}_{{\rm{2(g)}}}}\)
2 \({{\text{N}}_{{\text{2(g)}}}}{\text{ + 3}}{{\text{H}}_{{\text{2(g)}}}}\xrightarrow{{{\text{F}}{{\text{e}}_{{\text{(s)}}}}}}{\text{2N}}{{\text{H}}_{{\text{3(g)}}}}\)
3 \({\text{2S}}{{\text{O}}_{{\text{2(g)}}}}{\text{ + }}{{\text{O}}_{{\text{2(g)}}}}\xrightarrow{{{\text{N}}{{\text{O}}_{{\text{(g)}}}}}}{\text{2S}}{{\text{O}}_{{\text{3(g)}}}}\)
4 \({{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}}\xrightarrow{{{{\text{H}}^{\text{ + }}}{\text{(l)}}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}{\text{ + }}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}\)
CHXII05:SURFACE CHEMISTRY

320682 Air can oxidise sodium sulphate in aq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containing both sodium sulphite & sodium arsenite then both are oxidised. This is an example of:

1 Positive catalysis
2 Negative catalysis
3 Induced catalysis
4 Auto catalysis
CHXII05:SURFACE CHEMISTRY

320683 An example of autocatalysis is

1 Decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\).
2 Oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\).
3 Formation of \(\mathrm{NH}_{3}\) by \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}\) in presence
of Fe.
4 Oxidation of oxalic acid by acidic \(\mathrm{KMnO}_{4}\).
CHXII05:SURFACE CHEMISTRY

320684 What is the catalyst used for oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\) in lead chamber process for manufacture of sulphuric acid?

1 Nitric oxide
2 Nitrous oxide
3 Potassium iodide
4 Dilute \(\mathrm{HCl}\)
MHTCET - 2018
NEET DIGITAL LIBRARY
CHXII05:SURFACE CHEMISTRY

320680 An example for autocatalysis is

1 oxidation of \(\mathrm{NO}\) to \(\mathrm{NO}_{2}\)
2 oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\)
3 decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\)
4 oxidation of oxalic acid by acidified \(\mathrm{KMnO}_{4}\)
CHXII05:SURFACE CHEMISTRY

320681 Which of the following reactions is an example of auto catalysis?

1 \({\rm{2As}}{{\rm{H}}_{{\rm{3(s)}}}} \to {\rm{2A}}{{\rm{s}}_{{\rm{(s)}}}}{\rm{ + 3}}{{\rm{H}}_{{\rm{2(g)}}}}\)
2 \({{\text{N}}_{{\text{2(g)}}}}{\text{ + 3}}{{\text{H}}_{{\text{2(g)}}}}\xrightarrow{{{\text{F}}{{\text{e}}_{{\text{(s)}}}}}}{\text{2N}}{{\text{H}}_{{\text{3(g)}}}}\)
3 \({\text{2S}}{{\text{O}}_{{\text{2(g)}}}}{\text{ + }}{{\text{O}}_{{\text{2(g)}}}}\xrightarrow{{{\text{N}}{{\text{O}}_{{\text{(g)}}}}}}{\text{2S}}{{\text{O}}_{{\text{3(g)}}}}\)
4 \({{\text{C}}_{{\text{12}}}}{{\text{H}}_{{\text{22}}}}{{\text{O}}_{{\text{11}}}}{\text{ + }}{{\text{H}}_{\text{2}}}{{\text{O}}_{{\text{(l)}}}}\xrightarrow{{{{\text{H}}^{\text{ + }}}{\text{(l)}}}}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}{\text{ + }}{{\text{C}}_{\text{6}}}{{\text{H}}_{{\text{12}}}}{{\text{O}}_{{\text{6(l)}}}}\)
CHXII05:SURFACE CHEMISTRY

320682 Air can oxidise sodium sulphate in aq. solution but cannot do so in the case of sodium arsenite. If however, air is passed through a solution containing both sodium sulphite & sodium arsenite then both are oxidised. This is an example of:

1 Positive catalysis
2 Negative catalysis
3 Induced catalysis
4 Auto catalysis
CHXII05:SURFACE CHEMISTRY

320683 An example of autocatalysis is

1 Decomposition of \(\mathrm{KClO}_{3}\) to \(\mathrm{KCl}\) and \(\mathrm{O}_{2}\).
2 Oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\).
3 Formation of \(\mathrm{NH}_{3}\) by \(\mathrm{N}_{2}\) and \(\mathrm{H}_{2}\) in presence
of Fe.
4 Oxidation of oxalic acid by acidic \(\mathrm{KMnO}_{4}\).
CHXII05:SURFACE CHEMISTRY

320684 What is the catalyst used for oxidation of \(\mathrm{SO}_{2}\) to \(\mathrm{SO}_{3}\) in lead chamber process for manufacture of sulphuric acid?

1 Nitric oxide
2 Nitrous oxide
3 Potassium iodide
4 Dilute \(\mathrm{HCl}\)
MHTCET - 2018