Science
(a) Anirudh took two metal oxides; aluminium oxide and magnesium oxide as shown in the pictures given below. But he forgot to label them. How will you guide/ help Anirudh to identify the oxides and label them?
(b) In an activity Aishu was given two substances; Copper Sulphide (Cu2S) and Copper Oxide (Cu2O) to obtain copper from these compounds. She was able to extract Copper successfully. Illustrate with the help of chemical equations how Aishu might have completed the activity.
Related Questions
The cartoon below addresses a growing concern:
What impact will the process shown in the image have on Humans if they occupy the last trophic level? Explain
Create a food chain with more than 2 trophic levels that exists in the cabbage farm. If Humans occupy the last trophic level, then how would spraying pesticide affect the humans? Explain.
Give reasons for the following :
(a) Certain metals are used for making cooking utensils.
(b) Hydrogen gas does not evolve when certain metals except Mg & Mn react with nitric acid.
(i) In the given series of reactions, name the compounds X and Z.
(ii) Which type of reaction is X to Z?
(iii) You are given 3 unknown solutions A, B, and C with pH values of 6, 8 and 9.5 respectively. In which solution will the maximum number of hydronium ions be present? Arrange the given samples in the increasing order of H+ ion concentration.