Hot concentrated sulphuric acid is a moderately strong oxidizing agent. Which of the following reactions does not show oxidizing behaviour?
- A$Cu + 2H_2SO_4 \rightarrow CuSO_4 + SO_2 + 2H_2O$
- B$S + 2H_2SO_4 \rightarrow 3SO_2 + 2H_2O$
- C$C + 2H_2SO_4 \rightarrow CO_2 + 2SO_2 + 2H_2O$
- D$CaF_2 + H_2SO_4 \rightarrow CaSO_4 + 2HF$
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Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$MnS(s) + 2HCl(aq) \longrightarrow MnCl_2(aq) + H_2S(g)$
$MnS(s) + 2HCl(aq) \longrightarrow MnCl_2(aq) + H_2S(g)$
Medium
View SolutionThe product $D$ in the following reaction sequence is:
Thiosulphate reacts differently with iodine and bromine in the reactions given below:
$2 S_2 O_3^{2-} + I_2 \rightarrow S_4 O_6^{2-} + 2 I^{-}$
$S_2 O_3^{2-} + 4 Br_2 + 5 H_2 O \rightarrow 2 SO_4^{2-} + 8 Br^{-} + 10 H^{+}$
Which of the following statements justifies the above dual behaviour of thiosulphate?
$2 S_2 O_3^{2-} + I_2 \rightarrow S_4 O_6^{2-} + 2 I^{-}$
$S_2 O_3^{2-} + 4 Br_2 + 5 H_2 O \rightarrow 2 SO_4^{2-} + 8 Br^{-} + 10 H^{+}$
Which of the following statements justifies the above dual behaviour of thiosulphate?
Which of the following reactions is $NOT$ an example of a redox reaction?
$Cu^{2+}(aq.)$ does not undergo a redox reaction with a solution of:
Medium
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