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Questions
1
MHT CET (PCB) 2024 22th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following metal ions in their respective oxidation states forms colourless compounds?

A
$\mathrm{Ti}^{4+}$
B
$\mathrm{V}^{3+}$
C
$\mathrm{Cu}^{2+}$
D
$\mathrm{Mn}^{2+}$
2
MHT CET (PCB) 2024 22th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify false statement about zinc.

A
It has no unpaired electron either in observed or in expected electronic configuration.
B
It has lowest density amongst all 3d elements.
C
It has highest ionization enthalpy amongst 3d elements.
D
Magnetic moment of $\mathrm{Zn}^{++}$is zero.
3
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which element from following does NOT exhibit magnetic moment in +1 state?
A
Zn
B
Co
C
Cu
D
Mn
4
MHT CET (PCB) 2024 22th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify false statement about transition elements.

A
As per IUPAC convention, transition metal atom have incomplete d-subshell.
B
6d-series includes all elements from $\mathrm{Ac}(\mathrm{Z}=89)$ to $\mathrm{Cn}(\mathrm{Z}=112)$.
C
These elements are placed in group 3 to 12 in modern periodic table.
D
In these ( $\mathrm{n}-1$ ) d-orbital is filled successively.
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