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दी गई अभिक्रिया के लिए अम्लीय माध्यम में संतुलित समीकरण क्या होगा?
\[
\mathrm{Cr}_{2} \mathrm{O}_{7(a q)}^{2-}+\mathrm{SO}_{2(g)} \longrightarrow \mathrm{Cr}_{(a q)}^{3+}+\mathrm{SO}_{4(a q)}^{2-}
\]
(A) \( \mathrm{Cr}_{2} \mathrm{O}_{7(a q)}^{2-}+3 \mathrm{SO}_{2(g)}+2 \mathrm{H}_{(a q)}^{+} \longrightarrow \)
\( 2 \mathrm{Cr}_{(a q)}^{3+}+3 \mathrm{SO}_{4(a q)}^{2-}+\mathrm{H}_{2} \mathrm{O}_{(l)} \)
(B) \( 2 \mathrm{Cr}_{2} \mathrm{O}_{7(a q)}^{2-}+3 \mathrm{SO}_{2(g)}+4 \mathrm{H}_{(a q)}^{+} \longrightarrow \)
\( 4 \mathrm{Cr}_{(a q)}^{3+}+3 \mathrm{SO}_{4(a q)}^{2-}+2 \mathrm{H}_{2} \mathrm{O}_{(l)} \)
(C) \( \mathrm{Cr}_{2} \mathrm{O}_{7(a q)}^{2-}+3 \mathrm{SO}_{2(g)}+14 \mathrm{H}_{(a q)}^{+}- \)
\( 2 \mathrm{Cr}_{(a q)}^{3+}+3 \mathrm{SO}_{4(a q)}^{2-}+7 \mathrm{H}_{2} \mathrm{O}_{(l)} \)
(D) \( \mathrm{Cr}_{2} \mathrm{O}_{7(a q)}^{2-}+6 \mathrm{SO}_{2(g)}+7 \mathrm{H}_{(a q)}^{+} \longrightarrow \)
\( 2 \mathrm{Cr}_{(a q)}^{3+}+6 \mathrm{SO}_{4(a q)}^{2-}+7 \mathrm{H}_{2} \mathrm{O}_{(l)} \)
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