285448
In which one of the following pairs, both the elements does not have (\(\mathrm{n}-1) \mathrm{d}^{10} \mathrm{~ns}^2\) configuration in its elementary state?
285449
Which of the following is CORRECT with respect to melting point of a transition element?
1 \(\mathrm{V}>\mathrm{Cr}\)
2 \(\mathrm{Cr}>\mathrm{Mn}\)
3 \(\mathrm{Mn}>\mathrm{Fe}\)
4 \(\mathrm{Ti}>\mathrm{V}\)
Explanation:
(b) The melting point of transition elements increases with an increase in the metallic bonding which depends on the number of unpaired electrons. Due to a greater number of unpaired electrons in Cr than Mn , the melting point of Cr is greater than that of Mn .
The melting point of Fe is higher than that of Mn due to the unpaired 3d electrons of Mn being tightly boind.
Karnataka CET 2023
CHEMISTRY(KCET)
285450
A transition metal exists in its highest oxidation state. It is expected to behave as
1 an oxidising agent
2 a reducing agent
3 a chelating agent
4 a central metal in a co-ordination compound.
Explanation:
(a) If a transition metal is present in its highest oxidation state, it can only accept electrons thus, it will act as an oxidising agent.
Karnataka CET 2022
CHEMISTRY(KCET)
285451
What will be the value of\(x\) in \(\mathrm{Fe}^{x+}\), if the magnetic moment, \(\mu=\sqrt{24}\) BM?
NEET Test Series from KOTA - 10 Papers In MS WORD
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CHEMISTRY(KCET)
285448
In which one of the following pairs, both the elements does not have (\(\mathrm{n}-1) \mathrm{d}^{10} \mathrm{~ns}^2\) configuration in its elementary state?
285449
Which of the following is CORRECT with respect to melting point of a transition element?
1 \(\mathrm{V}>\mathrm{Cr}\)
2 \(\mathrm{Cr}>\mathrm{Mn}\)
3 \(\mathrm{Mn}>\mathrm{Fe}\)
4 \(\mathrm{Ti}>\mathrm{V}\)
Explanation:
(b) The melting point of transition elements increases with an increase in the metallic bonding which depends on the number of unpaired electrons. Due to a greater number of unpaired electrons in Cr than Mn , the melting point of Cr is greater than that of Mn .
The melting point of Fe is higher than that of Mn due to the unpaired 3d electrons of Mn being tightly boind.
Karnataka CET 2023
CHEMISTRY(KCET)
285450
A transition metal exists in its highest oxidation state. It is expected to behave as
1 an oxidising agent
2 a reducing agent
3 a chelating agent
4 a central metal in a co-ordination compound.
Explanation:
(a) If a transition metal is present in its highest oxidation state, it can only accept electrons thus, it will act as an oxidising agent.
Karnataka CET 2022
CHEMISTRY(KCET)
285451
What will be the value of\(x\) in \(\mathrm{Fe}^{x+}\), if the magnetic moment, \(\mu=\sqrt{24}\) BM?
285448
In which one of the following pairs, both the elements does not have (\(\mathrm{n}-1) \mathrm{d}^{10} \mathrm{~ns}^2\) configuration in its elementary state?
285449
Which of the following is CORRECT with respect to melting point of a transition element?
1 \(\mathrm{V}>\mathrm{Cr}\)
2 \(\mathrm{Cr}>\mathrm{Mn}\)
3 \(\mathrm{Mn}>\mathrm{Fe}\)
4 \(\mathrm{Ti}>\mathrm{V}\)
Explanation:
(b) The melting point of transition elements increases with an increase in the metallic bonding which depends on the number of unpaired electrons. Due to a greater number of unpaired electrons in Cr than Mn , the melting point of Cr is greater than that of Mn .
The melting point of Fe is higher than that of Mn due to the unpaired 3d electrons of Mn being tightly boind.
Karnataka CET 2023
CHEMISTRY(KCET)
285450
A transition metal exists in its highest oxidation state. It is expected to behave as
1 an oxidising agent
2 a reducing agent
3 a chelating agent
4 a central metal in a co-ordination compound.
Explanation:
(a) If a transition metal is present in its highest oxidation state, it can only accept electrons thus, it will act as an oxidising agent.
Karnataka CET 2022
CHEMISTRY(KCET)
285451
What will be the value of\(x\) in \(\mathrm{Fe}^{x+}\), if the magnetic moment, \(\mu=\sqrt{24}\) BM?
285448
In which one of the following pairs, both the elements does not have (\(\mathrm{n}-1) \mathrm{d}^{10} \mathrm{~ns}^2\) configuration in its elementary state?
285449
Which of the following is CORRECT with respect to melting point of a transition element?
1 \(\mathrm{V}>\mathrm{Cr}\)
2 \(\mathrm{Cr}>\mathrm{Mn}\)
3 \(\mathrm{Mn}>\mathrm{Fe}\)
4 \(\mathrm{Ti}>\mathrm{V}\)
Explanation:
(b) The melting point of transition elements increases with an increase in the metallic bonding which depends on the number of unpaired electrons. Due to a greater number of unpaired electrons in Cr than Mn , the melting point of Cr is greater than that of Mn .
The melting point of Fe is higher than that of Mn due to the unpaired 3d electrons of Mn being tightly boind.
Karnataka CET 2023
CHEMISTRY(KCET)
285450
A transition metal exists in its highest oxidation state. It is expected to behave as
1 an oxidising agent
2 a reducing agent
3 a chelating agent
4 a central metal in a co-ordination compound.
Explanation:
(a) If a transition metal is present in its highest oxidation state, it can only accept electrons thus, it will act as an oxidising agent.
Karnataka CET 2022
CHEMISTRY(KCET)
285451
What will be the value of\(x\) in \(\mathrm{Fe}^{x+}\), if the magnetic moment, \(\mu=\sqrt{24}\) BM?