Consider the following reactions
$
\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7 \xrightarrow{\Delta} 2 \

Question

Consider the following reactions
$
\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7 \xrightarrow{\Delta} 2 \mathrm{X}+\mathrm{Y}
$
$
\mathrm{CuSO}_4+\mathrm{Y} \xrightarrow{	ext { Non-Luminous flame }} \mathrm{Z}+\mathrm{SO}_3
$
$
2 \mathrm{Z}+2 \mathrm{X}+	ext { Carbon } \xrightarrow{	ext { Luminous flame }} 2 \mathrm{Q}+\mathrm{Na}_2 \mathrm{~B}_4 \mathrm{O}_7+\mathrm{CO}
$
The oxidation states of Cu in Z and Q , respectively are :

Professor PC Thomas Classes · Answer

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