Least reactive metal is
Least reactive metal is
- A
$Fe$
- B
$Os$
- C
$Ni$
- D
$Pt$
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Which $d-$ block element is expected to have highest enthalpy of atomisation, among the following ?
Which $d-$ block element is expected to have highest enthalpy of atomisation, among the following ?
Presence of $Cr$ in steel makes it
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Permanent magnet is made from
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The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
The correct order of decreasing third ionisation enthalpy of $Ti, \,V,\, Cr,\, Mn$ is
$\underbrace {\mathop {Hg{I_2}\,}\limits_{'X'} \xrightarrow[{Sublimation}]{\Delta }\,\mathop {Hg{I_2}}\limits_{'Y'} \xrightarrow{{Cooling}}\mathop {Hg{I_2}}\limits_{'Z'} }_{On\,\,rubbing}$
$\underbrace {\mathop {Hg{I_2}\,}\limits_{'X'} \xrightarrow[{Sublimation}]{\Delta }\,\mathop {Hg{I_2}}\limits_{'Y'} \xrightarrow{{Cooling}}\mathop {Hg{I_2}}\limits_{'Z'} }_{On\,\,rubbing}$