Download App

Redox Reactions — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryRedox Reactions2 Marks
Question
2Cu2S + 3O2 → 2Cu2O+2 SO2
In this reaction which substance is getting oxidised and which substance is getting reduced? Name reducing agent and oxidising agent.
✓

Answer

Since, oxygen is being added to Cu, therefore Cu2S is oxidised to Cu2O and the other reactant i.e. O2 is getting reduced. Hence, Cu2S is a reducing agent and O2 is an oxidising agent.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Redox Reactions→Redox Reactions — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

How many o and it bonds are present in each of the following molecules?
  1. $\text{CH}_3\text{CH}_2\text{C}\equiv\text{N}$
  2. $\text{CH}_3-\text{CH}=\text{CH}-\text{CH}_2-\text{C}\equiv\text{CH}$
  3. $\text{CH}_2=\text{C}=\text{CH}_2$
→
What is the relationship between direction of current and flow of electrons by convention?
→
$\text{N}_2(\text{g})+3\text{H}_2(\text{g})\rightleftharpoons2\text{NH}_3(\text{g});$
$\text{K}=0.50\text{ at }673\text{K.}$
Write the equilibrium expression and equilibrium constant for reverse reaction.
→
Arrange the following in increasing order of base strength:

 
→
What happens when:
  1. Bromoethane is treated with zinc and hydrochloric acid?
  2. Hydrogen is passed into 2-bromopropane in the presence of palladium?
→
→
When would the wavelength associated with an electron be equal to the wavelength associated with a proton? Mass of electron = 9.1095 × 10-28g; Mass of proton = 1.6725 × 10-24g.

OR

Calculate the velocity condition for the wavelength associated with a moving electron to be equal to the wavelength associated with a moving proton.

(Mass of electron = 9.11 × 10-48g; Mass of proton = 1.67 × 10-24g; h = 6.6 × 10-34Js; J = kg/ m2s-2).

→
Indicate the number of unpaired electrons in:
Cr.
→
Give different definations of Reduction reactions.
→
An atomic orbital has n = 3. What are the possible values of l and ml?
→