CUET-UG SERIES Chemistry
D Block Elements
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
4
2023 Chapter Questions 4 MCQs
01
PYQ 2023
medium
chemistry ID: cuet-ug-
The number of unpaired electron in gaseous ions Mn3+(Z=26), V3+ (Z=23), Cr3+ (Z=24) are respectively :
1
4, 2, 3
2
4, 4, 2
3
3, 2, 4
4
3, 4, 2
02
PYQ 2023
medium
chemistry ID: cuet-ug-
The correct statement about d-block elements, is
1
V2O5 is amphoteric in nature.
2
Ziegler catalyst consists of Al(CH3)3 and ZrCl4,
3
Cu+ ions do not show disproportionation reaction.
4
MnF7 is more stable than Mn2O7
03
PYQ 2023
medium
chemistry ID: cuet-ug-
Which one of the following characteristics of the transition metals is associated with their catalytic property/activity ?
1
colour of hydrated ion
2
variable oxidation states
3
high enthalpy of atomisation
4
paramagnetic behaviour
04
PYQ 2023
medium
chemistry ID: cuet-ug-
Colour of Manganate ion in is due to:
1
d-d transition
2
Charge transfer spectra
3
f-f transition
4
its diamagnetic nature