Redox Reactions · Chemistry · MHT CET

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MCQ (Single Correct Answer)

MHT CET 2023 14th May Evening Shift
Which among the following species is reduced by tin easily?
MHT CET 2023 14th May Morning Shift
What is the number of moles of electrons gained by one mole oxidizing agent in following redox reaction? $$\mathrm{Zn_{(s)}+2HCl_{(aq)}}$$ $$\longrigh...
MHT CET 2023 13th May Evening Shift
Which from following elements exhibits usual tendency to undergo reduction?
MHT CET 2023 13th May Morning Shift
What is the change in oxidation number of selenium in the following redox reaction? $$\mathrm{SeO}_{3(\text { (a) })}^{2-}+\mathrm{Cl}_{2(\mathrm{~g})...
MHT CET 2023 12th May Evening Shift
What is the change in oxidation number of $$\mathrm{Cr}$$ in the following redox reaction? $$3 \mathrm{H}_2 \mathrm{O}_{2(\mathrm{aq})}+\mathrm{Cr}_2 ...
MHT CET 2023 11th May Evening Shift
What is the oxidation number of sulfur in $$\mathrm{H}_2 \mathrm{SO}_5$$ ?
MHT CET 2023 10th May Evening Shift
Identify the elements undergoing reduction and oxidation respectively in the following redox reaction. $$3 \mathrm{H}_3 \mathrm{AsO}_{3(\mathrm{aq})}+...
MHT CET 2023 10th May Morning Shift
What is the value of $$x$$ in order to balance following redox reaction? $$\mathrm{Mn}_{(\mathrm{aq})}^{2+}+x \mathrm{ClO}_{3(\mathrm{aq})}^{-} \right...
MHT CET 2023 9th May Morning Shift
What is the oxidation state of carbon in $$\mathrm{CaC}_2$$ and $$\mathrm{K}_2 \mathrm{C}_2 \mathrm{O}_4$$ respectively?
MHT CET 2022 11th August Evening Shift
Which one of the following conversions does NOT involve either oxidation or reduction?
MHT CET 2021 22th September Evening Shift
Identify reducing agent in following reaction $$\mathrm{H}_2 \mathrm{O}_{2(\mathrm{ag})}+\mathrm{ClO}_{4(\mathrm{aq})}^{-} \rightarrow \mathrm{ClO}_{2...
MHT CET 2021 21th September Morning Shift
Oxidation state of Cr in potassium dichromate is
MHT CET 2021 20th September Evening Shift
What is the value of '$$\mathrm{x}$$' in order to balance the following redox reaction by ion electron method? $$\quad \mathrm{x} \mathrm{H}_2 \mathrm...
MHT CET 2021 20th September Morning Shift
Identify reductant in following reaction. $$\mathrm{{C_2}O_4^{2 - } + MnO_4^ - + {H^ + } \longrightarrow M{n^{2 + }} + C{O_2} + {H_2}O}$$...
MHT CET 2020 16th October Morning Shift
What is the oxidation number of As in H$$_3$$AsO$$_3$$ ?
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