Identify the correct order of acidic strength of ${\rm{C}}{{\rm{O}}_2},{\rm{CuO}},{\rm{CaO}},{{\rm{H}}_2}{\rm{O}}:$

${\rm{CaO}} < CuO < {{\rm{H}}_2}{\rm{O}} < C{{\rm{O}}_2}$

${{\rm{H}}_2}{\rm{O}} < CuO < CaO < {{\rm{H}}_2}{\rm{O}}$

${\rm{CaO}} < {{\rm{H}}_2}{\rm{O}} < CuO < C{{\rm{O}}_2}$

${{\rm{H}}_2}{\rm{O}} < C{{\rm{O}}_2} < CaO < CuO$

NEET UG CHEMISTRY MCQ: Equilibrium

1 Medium

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Understanding +4 | -1

Identify the correct order of acidic strength of

\mathrm{C}{\mathrm{O}_2},\mathrm{CuO},\mathrm{CaO},{\mathrm{H}_2}\mathrm{O}:

View answer and explanation

Correct option: A

\mathrm{CaO} < CuO < {\mathrm{H}_2}\mathrm{O} < C{\mathrm{O}_2}

Option A (

\mathrm{CaO} < CuO < {\mathrm{H}_2}\mathrm{O} < C{\mathrm{O}_2}

) is the correct order because it reflects the increasing non-metallic character and acidity.

Practice All Chapter MCQs →

Mg{(HC{O_3})_2}

MgC{O_3}

Mg{(OH)_2}

MgC{O_3}

K_{\mathrm{P}}

\mathrm{CaCO}_3

4.5 \times 10^{-2}

\mathrm{C}(\mathrm{s})+\mathrm{CO}_2(\mathrm{g}) \rightleftharpoons 2 \mathrm{CO}(\mathrm{g}),

K_{\mathrm{P}}

2.0 \mathrm{~atm}.

\mathrm{CaO}

\mathrm{CaCO}_3

+

\leftrightharpoons

\mathrm{PC}{\mathrm{l}_5}\leftrightharpoons\mathrm{PC}{\mathrm{l}_3} + \mathrm{C}{\mathrm{l}_2}

{K_{\mathrm{eq}}} = 0.41

\mathrm{p}{K_a}