321380
Match Column I (Substances) with Column II(Element present). Column I Column II A Ziegler catalyst P Rhodium B Blood pigment Q Cobalt C Wilkinson catalyst R Iron D Vitamin \({{\rm{B}}_{{\rm{12}}}}\) S Titanium
Ziegler catalyst is a complex of titanium. (A-S) Blood pigment contains iron. (B-R) Wilkinson catalyst contains rhodium. (C-P) Vitamin \({\mathrm{\mathrm{B}_{12}}}\) includes cobalt. (D-Q) So, the correct option is (1).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321381
Select the catalyst used in hydrogenation of ethene.
321382
An oxide of vanadium is used as a catalyst in the contact process for the manufacture of sulphuric acid. The oxidation number of vanadium in this oxide is ____ .
1 4
2 5
3 1
4 2
Explanation:
\({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is used as catalyst in contact process Oxidation number of V in \({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is +5 .
CHXII08:THE D- & F-BLOCK ELEMENTS
321383
Which one of the following characteristics of the transition metal is associated with their catalytic activity?
1 High enthalpy
2 Paramagnetic behaviour
3 Colour of hydrated ions
4 Variable oxidation states
Explanation:
Transition elements show variable oxidation states so that they readily form intermediate complexes which explain their catalytic activity.
321380
Match Column I (Substances) with Column II(Element present). Column I Column II A Ziegler catalyst P Rhodium B Blood pigment Q Cobalt C Wilkinson catalyst R Iron D Vitamin \({{\rm{B}}_{{\rm{12}}}}\) S Titanium
Ziegler catalyst is a complex of titanium. (A-S) Blood pigment contains iron. (B-R) Wilkinson catalyst contains rhodium. (C-P) Vitamin \({\mathrm{\mathrm{B}_{12}}}\) includes cobalt. (D-Q) So, the correct option is (1).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321381
Select the catalyst used in hydrogenation of ethene.
321382
An oxide of vanadium is used as a catalyst in the contact process for the manufacture of sulphuric acid. The oxidation number of vanadium in this oxide is ____ .
1 4
2 5
3 1
4 2
Explanation:
\({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is used as catalyst in contact process Oxidation number of V in \({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is +5 .
CHXII08:THE D- & F-BLOCK ELEMENTS
321383
Which one of the following characteristics of the transition metal is associated with their catalytic activity?
1 High enthalpy
2 Paramagnetic behaviour
3 Colour of hydrated ions
4 Variable oxidation states
Explanation:
Transition elements show variable oxidation states so that they readily form intermediate complexes which explain their catalytic activity.
321380
Match Column I (Substances) with Column II(Element present). Column I Column II A Ziegler catalyst P Rhodium B Blood pigment Q Cobalt C Wilkinson catalyst R Iron D Vitamin \({{\rm{B}}_{{\rm{12}}}}\) S Titanium
Ziegler catalyst is a complex of titanium. (A-S) Blood pigment contains iron. (B-R) Wilkinson catalyst contains rhodium. (C-P) Vitamin \({\mathrm{\mathrm{B}_{12}}}\) includes cobalt. (D-Q) So, the correct option is (1).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321381
Select the catalyst used in hydrogenation of ethene.
321382
An oxide of vanadium is used as a catalyst in the contact process for the manufacture of sulphuric acid. The oxidation number of vanadium in this oxide is ____ .
1 4
2 5
3 1
4 2
Explanation:
\({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is used as catalyst in contact process Oxidation number of V in \({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is +5 .
CHXII08:THE D- & F-BLOCK ELEMENTS
321383
Which one of the following characteristics of the transition metal is associated with their catalytic activity?
1 High enthalpy
2 Paramagnetic behaviour
3 Colour of hydrated ions
4 Variable oxidation states
Explanation:
Transition elements show variable oxidation states so that they readily form intermediate complexes which explain their catalytic activity.
321380
Match Column I (Substances) with Column II(Element present). Column I Column II A Ziegler catalyst P Rhodium B Blood pigment Q Cobalt C Wilkinson catalyst R Iron D Vitamin \({{\rm{B}}_{{\rm{12}}}}\) S Titanium
Ziegler catalyst is a complex of titanium. (A-S) Blood pigment contains iron. (B-R) Wilkinson catalyst contains rhodium. (C-P) Vitamin \({\mathrm{\mathrm{B}_{12}}}\) includes cobalt. (D-Q) So, the correct option is (1).
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS
321381
Select the catalyst used in hydrogenation of ethene.
321382
An oxide of vanadium is used as a catalyst in the contact process for the manufacture of sulphuric acid. The oxidation number of vanadium in this oxide is ____ .
1 4
2 5
3 1
4 2
Explanation:
\({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is used as catalyst in contact process Oxidation number of V in \({\mathrm{\mathrm{V}_{2} \mathrm{O}_{5}}}\) is +5 .
CHXII08:THE D- & F-BLOCK ELEMENTS
321383
Which one of the following characteristics of the transition metal is associated with their catalytic activity?
1 High enthalpy
2 Paramagnetic behaviour
3 Colour of hydrated ions
4 Variable oxidation states
Explanation:
Transition elements show variable oxidation states so that they readily form intermediate complexes which explain their catalytic activity.
