The $d-$ block element which is a liquid at room temperature, having high specific heat, less reactivity than hydrogen and its chloride $(MX_2)$ is volatile on heating is
The $d-$ block element which is a liquid at room temperature, having high specific heat, less reactivity than hydrogen and its chloride $(MX_2)$ is volatile on heating is
- A
$Cu$
- B
$Hg$
- C
$Ce$
- D
$Pm$
Similar Questions
Which of the following will show increase in weight when kept in magnetic field
Which of the following will show increase in weight when kept in magnetic field
The spin only magnetic moment value of the ion among $\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}$ and $\mathrm{Cr}^{2+}$, that acts as strong oxidising agent in aqueous solution is .......... BM (Near integer).
(Given atomic numbers: $\mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}: 24$, Co: $27$)
The spin only magnetic moment value of the ion among $\mathrm{Ti}^{2+}, \mathrm{V}^{2+}, \mathrm{Co}^{3+}$ and $\mathrm{Cr}^{2+}$, that acts as strong oxidising agent in aqueous solution is .......... BM (Near integer).
(Given atomic numbers: $\mathrm{Ti}: 22, \mathrm{~V}: 23, \mathrm{Cr}: 24$, Co: $27$)
- [JEE MAIN 2024]
Although $Cr^{3+}$ and $Co^{2+}$ ions have same number of unpaired electrons but the magnetic moment of $Cr^{3+}$ is $3.87\,BM$. and that of $Co^{2+}$ is $4.87\,BM$. Why ?
Although $Cr^{3+}$ and $Co^{2+}$ ions have same number of unpaired electrons but the magnetic moment of $Cr^{3+}$ is $3.87\,BM$. and that of $Co^{2+}$ is $4.87\,BM$. Why ?
In a titration experiment, $10 \,mL$ of an $FeCl _{2}$ solution consumed $25\, mL$ of a standard $K _{2} Cr _{2} O _{7}$ solution to reach the equivalent point. The standard $K _{2} Cr _{2} O _{7}$ solution is prepared by dissolving $1.225\, g$ of $K _{2} Cr _{2} O _{7}$ in $250 \,mL$ water. The concentration of the $FeCl _{2}$ solution is closest to $.....\, N$
[Given : molecular weight of $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]
[Given : molecular weight of $K _{2} Cr _{2} O _{7}=294 \,g\, mol ^{-1}$ ]
- [KVPY 2019]
Which of the following has second ionisation potential less than expected
Which of the following has second ionisation potential less than expected