Advertisements
Advertisements
प्रश्न
The metals which can produce amphoteric oxides are:
(a) sodium and aluminium
(b) zinc and potassium
(c) calcium and sodium
(d) aluminium and zinc
उत्तर
(d) aluminium and zinc
Both aluminium and zinc oxides react with acids and bases to form salt and water.
APPEARS IN
संबंधित प्रश्न
Write equations for the reactions of iron with steam.
A solution of _________________ in water is green in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Name the metal which has been placed at the top of the reactivity series.
Name the metal which has been placed just below copper in the reactivity series.
Which of the two metals is more reactive: copper or silver?
What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.
Which non-metal has been placed in the reactivity series of metals?
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3solution?
(a) Magnesium
(b) Zinc
(c) Gold
(d) Copper
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
(a) What is the nature of the oxide E2O?
(b) State whether element E is a metal or a non-metal.
(c) Give one example of an element like E.
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?