Give reasons (a) Platinum, gold and silver are used to make jewellery. (b) Sodium, potassium and lithium are stored under oil. (c) Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. (d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Reactivity Series of Metals, Extraction of Metals Based on Reactivity | PadhAiPro

Question

CASE_STUDIESReactivity Series of MetalsExtraction of Metals Based on Reactivity4 sub-questions

Similar Questions

The metals which are found in both free state as well as combined state are :

MCQ (Single)Reactivity Series of MetalsMinerals and Ores

Assertion (A) : The extraction of metals from their sulphide ores cannot take place without roasting of the ore. Reason (R) : Roasting converts sulphide ores directly into metals.

Assertion-Reason

Extraction of Metals Based on Reactivity

Roasting of Sulphide Ores

Three metal samples of magnesium, aluminium and iron were taken and rubbed with sand paper. These samples were then put separately in test tubes containing dilute hydrochloric acid. Thermometers were also suspended in each test tube so that their bulbs dipped in the acid. The rate of formation of bubbles was observed. The above activity was repeated with dilute nitric acid and the observations were recorded.

CASE_STUDIESReaction of Metals with Dilute AcidsDisplacement Reaction of Metals with Salt SolutionsReactivity Series of Metals

CASE_STUDIESReaction of Metals with Dilute AcidsReactivity Series of Metals

Assertion (A) : A piece of Zinc metal gets reddish brown coating when kept in copper sulphate solution for some time. Reason (R) : Copper is more reactive metal than Zinc.

Assertion-ReasonDisplacement Reaction of Metals with Salt SolutionsReactivity Series of Metals

State giving reason the reduction process to obtain the following metals from their compounds :

CASE_STUDIESExtraction of Metals Based on ReactivityCorrosion of Metals Due to Environmental Factors