1
KCET 2022
MCQ (Single Correct Answer)
+1
-0

What will be the value of $$x$$ in $$\mathrm{Fe}^{x+}$$, if the magnetic moment, $$\mu=\sqrt{24} \mathrm{~BM}$$ ?

A
+3
B
0
C
+1
D
+2
2
KCET 2022
MCQ (Single Correct Answer)
+1
-0

The only lanthanoid which is radioactive

A
cerium
B
promethium
C
praseodymium
D
lanthanum
3
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following does not represent property stated against it?

A
$$\mathrm{CO}^{2+}<\mathrm{Fe}^{2+}<\mathrm{Mn}^{2+}$$ - Ionic size
B
$$\mathrm{Ti}<\mathrm{V}<\mathrm{Mn}$$ - Number of oxidation states
C
$$\mathrm{Cr}^{2+}<\mathrm{Mn}^{2+}<\mathrm{Fe}^{2+}$$ - Paramagnetic behaviour
D
$$\mathrm{Sc}>\mathrm{Cr}>\mathrm{Fe}$$ - Density
4
KCET 2021
MCQ (Single Correct Answer)
+1
-0

Which one of the following is correct for all elements from Sc to Cu?

A
The lowest oxidation state shown by them is +2
B
$$4 s$$ orbital is completely filled in the ground state
C
$$3 d$$ orbital is not completely filled in the ground state
D
The ions in +2 oxidation states are paramagnetic
KCET Subjects
EXAM MAP