Advertisements
Advertisements
Question
Name two metals which form amphoteric oxides.
Advertisements
Solution
Aluminium and zinc are two metals that form amphoteric oxides.
APPEARS IN
RELATED QUESTIONS
_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Which gas is produced when dilute hydrochloric acid is added to a reactive metal?
Differentiate between metal and non-metal on the basis of their chemical properties.
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
Name the metal which has been placed at the top of the reactivity series.
How would you show that silver is chemically less reactive than copper?
Fill in the following blank with suitable word:
The white powder formed when magnesium ribbon burns in oxygen is of ....................
Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
What is the action of water on sodium ? Write equation of the chemical reaction involved.
Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.
Write the chemical equation of the reaction which takes place when iron reacts with dilute sulphuric acid. What happens when the gas produced is ignited with a burning matchstick?
What is meant by the reactivity series of metals? Arrange the following metals in an increasing order of their reactivities towards water:
Zinc, Iron, Magnesium, Sodium
Zinc oxide is a metal oxide. Which of the following term best describes the nature of zinc oxide:
(a) an acidic oxide
(b) a basic oxide
(c) an amphoteric oxide
(d) a neutral oxide
An element is soft and can be cut with a knife. If is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be:
(a) Mg
(b) S
(c) P
(d) Na
CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)
FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)
On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.
Name a metal which It does not react with any physical state of water?
Where does the metal aluminium, used in the process, occurs in the reactivity series of metals?
Tungsten wire is used in electric bulbs.
