List of top Chemistry Questions on Redox reactions asked in IPU CET

Which of the following choices represents $^{239}_{94}Pu$ producing a positron?

The first step in producing pure lead from galena $(PbS)$ is as follows: $ 2{PbS}(s) + 3{O}_2(g) \longrightarrow 2{PbO}(s) + 2{SO}_2(g) $.
All of the following are true concerning this reaction except:

A student wished to produce only carbon from the dioxide and water vapour combustion of methane, CH$_4$. To accomplish this the student should

Calculate the rate constant for the radioactive disintegration of an isotope that has a half-life of 6930 yr.

In the redox reaction \[ \text{MnO}_4^- + \text{C}_2\text{O}_4^{2-} \to \text{Mn}^{2+} + \text{CO}_2 + \text{H}_2\text{O} \] The correct coefficients of $ \text{C}_2\text{O}_4^{2-} $ and $ \text{H}^+ $ are

Compound A undergoes the following reaction to form B and C: \[ \text{KNO}_3 + \text{KOH} \to \text{Black coloured solid} (A) \xrightarrow{\text{heated}} \text{Green coloured solid B} + \text{Pink solution + A} (\text{C decolorised by Fe}^{2+}) \] Identify A, B, and C respectively

In aqueous solution Cu(+1) salts are unstable because