Compounds of transition elements
CHXII08:THE D- & F-BLOCK ELEMENTS

321352 KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be needed to react with one mole of sulphide ions in acidic medium are

1 25
2 35
3 45
4 15
CHXII08:THE D- & F-BLOCK ELEMENTS

321353 In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphide to permanganate as follows:
xMn2++yS2O82+zH2OaMnO4+bSO42+cH+
The value of ' c ' is

1 10
2 12
3 16
4 2
CHXII08:THE D- & F-BLOCK ELEMENTS

321354 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Fusion of MnO2 with KOH and an oxidising agent gives dark green
K2MnO4.
Statement B :
Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII08:THE D- & F-BLOCK ELEMENTS

321355 Formula of ammonium manganate is

1 NH4MnO4
2 (NH4)2MnO4
3 NH4(MnO4)2
4 NH4Mn2O4
CHXII08:THE D- & F-BLOCK ELEMENTS

321356 The magnanate and permanganate ions are tetrahedral, due to :

1 The π - bonding involves overlap of p orbitals of oxygen with d-orbitals of manganese
2 There is no π-bonding
3 The π-bonding involves overlap of p orbitals of oxygen with p-orbitals of manganese
4 The π-bonding involves overlap of d orbitals of oxygen with d-orbitals of manganese
CHXII08:THE D- & F-BLOCK ELEMENTS

321352 KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be needed to react with one mole of sulphide ions in acidic medium are

1 25
2 35
3 45
4 15
CHXII08:THE D- & F-BLOCK ELEMENTS

321353 In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphide to permanganate as follows:
xMn2++yS2O82+zH2OaMnO4+bSO42+cH+
The value of ' c ' is

1 10
2 12
3 16
4 2
CHXII08:THE D- & F-BLOCK ELEMENTS

321354 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Fusion of MnO2 with KOH and an oxidising agent gives dark green
K2MnO4.
Statement B :
Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII08:THE D- & F-BLOCK ELEMENTS

321355 Formula of ammonium manganate is

1 NH4MnO4
2 (NH4)2MnO4
3 NH4(MnO4)2
4 NH4Mn2O4
CHXII08:THE D- & F-BLOCK ELEMENTS

321356 The magnanate and permanganate ions are tetrahedral, due to :

1 The π - bonding involves overlap of p orbitals of oxygen with d-orbitals of manganese
2 There is no π-bonding
3 The π-bonding involves overlap of p orbitals of oxygen with p-orbitals of manganese
4 The π-bonding involves overlap of d orbitals of oxygen with d-orbitals of manganese
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
CHXII08:THE D- & F-BLOCK ELEMENTS

321352 KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be needed to react with one mole of sulphide ions in acidic medium are

1 25
2 35
3 45
4 15
CHXII08:THE D- & F-BLOCK ELEMENTS

321353 In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphide to permanganate as follows:
xMn2++yS2O82+zH2OaMnO4+bSO42+cH+
The value of ' c ' is

1 10
2 12
3 16
4 2
CHXII08:THE D- & F-BLOCK ELEMENTS

321354 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Fusion of MnO2 with KOH and an oxidising agent gives dark green
K2MnO4.
Statement B :
Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII08:THE D- & F-BLOCK ELEMENTS

321355 Formula of ammonium manganate is

1 NH4MnO4
2 (NH4)2MnO4
3 NH4(MnO4)2
4 NH4Mn2O4
CHXII08:THE D- & F-BLOCK ELEMENTS

321356 The magnanate and permanganate ions are tetrahedral, due to :

1 The π - bonding involves overlap of p orbitals of oxygen with d-orbitals of manganese
2 There is no π-bonding
3 The π-bonding involves overlap of p orbitals of oxygen with p-orbitals of manganese
4 The π-bonding involves overlap of d orbitals of oxygen with d-orbitals of manganese
CHXII08:THE D- & F-BLOCK ELEMENTS

321352 KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be needed to react with one mole of sulphide ions in acidic medium are

1 25
2 35
3 45
4 15
CHXII08:THE D- & F-BLOCK ELEMENTS

321353 In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphide to permanganate as follows:
xMn2++yS2O82+zH2OaMnO4+bSO42+cH+
The value of ' c ' is

1 10
2 12
3 16
4 2
CHXII08:THE D- & F-BLOCK ELEMENTS

321354 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Fusion of MnO2 with KOH and an oxidising agent gives dark green
K2MnO4.
Statement B :
Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII08:THE D- & F-BLOCK ELEMENTS

321355 Formula of ammonium manganate is

1 NH4MnO4
2 (NH4)2MnO4
3 NH4(MnO4)2
4 NH4Mn2O4
CHXII08:THE D- & F-BLOCK ELEMENTS

321356 The magnanate and permanganate ions are tetrahedral, due to :

1 The π - bonding involves overlap of p orbitals of oxygen with d-orbitals of manganese
2 There is no π-bonding
3 The π-bonding involves overlap of p orbitals of oxygen with p-orbitals of manganese
4 The π-bonding involves overlap of d orbitals of oxygen with d-orbitals of manganese
CHXII08:THE D- & F-BLOCK ELEMENTS

321352 KMnO4 acts as an oxidising agent in acidic medium. The number of moles of KMnO4 that will be needed to react with one mole of sulphide ions in acidic medium are

1 25
2 35
3 45
4 15
CHXII08:THE D- & F-BLOCK ELEMENTS

321353 In the laboratory, a manganese (II) ion salt is oxidised by peroxodisulphide to permanganate as follows:
xMn2++yS2O82+zH2OaMnO4+bSO42+cH+
The value of ' c ' is

1 10
2 12
3 16
4 2
CHXII08:THE D- & F-BLOCK ELEMENTS

321354 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
Fusion of MnO2 with KOH and an oxidising agent gives dark green
K2MnO4.
Statement B :
Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
CHXII08:THE D- & F-BLOCK ELEMENTS

321355 Formula of ammonium manganate is

1 NH4MnO4
2 (NH4)2MnO4
3 NH4(MnO4)2
4 NH4Mn2O4
CHXII08:THE D- & F-BLOCK ELEMENTS

321356 The magnanate and permanganate ions are tetrahedral, due to :

1 The π - bonding involves overlap of p orbitals of oxygen with d-orbitals of manganese
2 There is no π-bonding
3 The π-bonding involves overlap of p orbitals of oxygen with p-orbitals of manganese
4 The π-bonding involves overlap of d orbitals of oxygen with d-orbitals of manganese