Download App

Metallurgy — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryMetallurgy3 Marks
Question
Give the equation for the reduction of Copper oxide
✓

Answer

Reduction of copper oxide:
$CuO + C \xrightarrow{\Delta} Cu + CO $
$CuO + CO \xrightarrow{\Delta} Cu + CO _2$
$CuO + H _2 \xrightarrow{\Delta} Cu + H _2 O$

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 "[3 Mark Question Answer]" from Metallurgy→Metallurgy — all question types→Chemistry STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

What is passive iron? How is passivity removed?
→
A sample of ammonium nitrate when heated yields $8.96$ litres of steam $($measured at $\text{STP})$
$NH_4NO_3 \rightarrow N_2O + 2H_2O$
What volume of dinitrogen oxide is produced at the same time as $8.96\ L$ of steam?
→
When heated, potassium permanganate decomposes according to the following equation $:2KMnO_4 \rightarrow K_2MnO_4+ MnO_2 + O_2$
Some potassium permanganate was heated in test tube. After collecting one litre of oxygen at room temperature, it was found that the test tube had undergone a loss in mass of $1.32g$ . If one litre of hydrogen under the same conditions of temperature and pressure has a mass of $0.0825g,$ calculate the relative molecular mass of oxygen.
→
Define the substitution and addition reaction. Give an example for each.
→
Write chemical equations for conc. sulphuric acid when the products of oxidation are :
(i) carbon dioxide (ii) sulphur dioxide (iii) copper sulphate
→
Give the chemical equation (s) to prove that $NH_3$ contains nitrogen and hydrogen.
→
What is eaten ation? Why carbon shovv rnaximurn tendency of catenation?
→
Explain the following briefly:
Sodium chloride dissolves in water but carbon tetra chloride is insoluble in water.
→
Give two balanced reactions of each type to show the following properties of sulphuric acid:
Non-volatile nature
→
Name the method used for preparation of the following salt from the list given below:
Zinc ion and Lead ion.
→