1
TS EAMCET 2023 (Online) 14th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Among the following the incorrect statement about transition metals is

A

$\mathrm{Cr}, \mathrm{Mo}$ and W have high melting points.

B

With increase in number of unpaired. electrons melting point increases.

C

$\mathrm{Mn}^{3+}$ is more stable than $\mathrm{Mn}^{2+}$.

D

They show variable oxidation states.

2
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Observe the following ions

$$ \mathrm{V}^{2+}, \mathrm{Zn}^{2+}, \mathrm{Cu}^{2+}, \mathrm{Fe}^{2+}, \mathrm{Fe}^{3+}, \mathrm{Ti}^{3+}, \mathrm{Sc}^{3+}, \mathrm{Ti}^{4+}, \mathrm{Ni}^{3+}, \mathrm{Co}^{3+}, \mathrm{Cu}^{+} $$

How many ions in the above list have zero magnetic moment?

A

4

B

3

C

5

D

2

3
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The order of melting points of $\mathrm{Cr}, \mathrm{Mo}$ and W is

A
$\mathrm{Cr}>\mathrm{Mo}>\mathrm{W}$
B
$\mathrm{Mo}>\mathrm{Cr}>\mathrm{W}$
C
$\mathrm{W}>\mathrm{Mo}>\mathrm{Cr}$
D
$\mathrm{W}>\mathrm{Cr}>\mathrm{Mo}$
4
TS EAMCET 2023 (Online) 12th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The number $f$-electrons in +3 oxidation state of gadolinium $(Z=64)$ is $x$ and in +2 oxidation state of ytterbium $(Z=70)$ is $y$. The sum of $x$ and $y$ is
A
13
B
20
C
18
D
21

TS EAMCET Subjects

Browse all chapters by subject