Advertisements
Advertisements
Question
What is the action of water on aluminium ? Write equation of the chemical reaction involved.
Advertisements
Solution
Aluminium does not react with cold water. But it reacts with steam to form aluminium oxide and hydrogen gas.
2Al(s) + 3H2O(g) → Al2O3(s) + 3H2(g)
APPEARS IN
RELATED QUESTIONS
A solution of CuSO4 in water is .................... in colour.
(a) Pink
(b) Blue
(c) Colourless
(d) Green
‘E’ is an element which reacts with oxygen to form an oxide E2O. An aqueous solution of E2O turns red litmus blue, so:
i. What is the nature of oxide E2O ?
ii. Write the name of element ‘E’.
Why is sodium kept immersed in kerosene oil?
Show the formation of Na2O by the transfer of electrons.
An element reacts with oxygen to give a compound with a high melting point. This compound is also soluble in water. The element is likely to be:
Food cans are coated with tin and not with zinc because ______.
What changes in the colour of iron nails and copper sulphate solution do you observe after keeping the iron nails dipped in copper sulphate solution for about 30 minutes?
With the help of examples, describe how metal oxides differ from non-metal oxides.
Which of the following elements would yield a neutral oxide?
Na, S, C, K, H
Name two metals which can, however, liberate hydrogen gas from very dilute nitric acid.
How do non-metals react with hydrogen? Explain with an example.
What is the action of water on magnesium ? 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.
If A, B, C, D, E, F, G, H, I, J and K represent metals in the decreasing order of their reactivity, which one of them is most likely to occur in a free state in nature?
Name a metal which does not react with cold as well as hot water but reacts with steam.
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?
