Advertisements
Advertisements
प्रश्न
Name:
a substance that oxidizes concentrated HCl to chlorine.
Advertisements
उत्तर
MnO2
manganese(IV) oxide
APPEARS IN
संबंधित प्रश्न
Why does the colour of copper sulphate solution change when an iron nail is dipped in it?
Give one example of an oxidation-reduction reaction which is also a combination reaction.
Fill in the blank
Oxidation is the removal of ......................and addition of ....................
Identify from the following reaction the reactants that undergo oxidation and reduction.
\[\ce{2Ag2O → 4 Ag + O2 \uparrow}\]
Choose terms from the options given in brackets to complete this sentence.
When CuO reacts with hydrogen,………………… is reduced and ……………….is oxidized to ………………….
(CuO, H2, Cu, H2O)
Complete and balance the following equation:
CuO +__________→ Cu +___________
When the positive charge on an ion increases or the negative charge on them decreases it is called as _______.
You are provided with two containers made up of copper and aluminium. You are also provided with solutions of dilute HCl, dilute HNO3, ZnCl2 and water. In which of the above containers, can these solutions be kept?
What is a redox reaction?
Identify the type of chemical reaction given below:
\[\ce{2Mg + O2 -> 2MgO}\]
