The most stable oxidation state of $Cr$ in aqueous medium is
- A$Cr^{2+}$
- B$Cr^{3+}$
- C$Cr^{4+}$
- D$Cr^{6+}$
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What is the name of the element with atomic number $105$?
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View SolutionMatch the following:
List-$I$ List-$II$ $A$. Titanium $I$. Non-metal $B$. Fluorine $II$. Transition metal $C$. Tellurium $III$. Lanthanoid $D$. Dysprosium $IV$. Metalloid
| List-$I$ | List-$II$ |
|---|---|
| $A$. Titanium | $I$. Non-metal |
| $B$. Fluorine | $II$. Transition metal |
| $C$. Tellurium | $III$. Lanthanoid |
| $D$. Dysprosium | $IV$. Metalloid |
Ionisation potential values of $d-$block elements as compared to ionization potential values of $f-$block elements are
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View SolutionAssertion : Transition metals show variable valency.
Reason : Transition metals have a large energy difference between the $ns^2$ and $(n-1)d$ electrons.
Reason : Transition metals have a large energy difference between the $ns^2$ and $(n-1)d$ electrons.
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View SolutionMercury is a liquid metal because .....
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