Advertisements
Advertisements
Question
Explain the following reaction with the balanced equation.
Chlorine dissolved in water
Solution
Chlorine dissolves in water to form hypochlorous acid and hydrochloric acid.
\[\ce{\underset{\text{Chlorine}}{Cl_{2(g)}} + \underset{\text{Water}}{H2O_{(l)}} -> \underset{\text{Hypochlorous acid}}{HOCl_{(aq)}} + \underset{\text{Hydrochloric acid}}{HCl_{(aq)}}}\]
APPEARS IN
RELATED QUESTIONS
M is a metal above hydrogen in the activity series and its oxide has the formula M2O. This oxide when dissolved in water forms the corresponding hydroxide which is a good conductor of electricity. In the above context, answer the following:
1) What kind of combination exists between M and O?
2)How many electrons are there in the outermost shell of M?
3) Name the group to which M belongs.
4) State the reaction taking place at the cathode.
5) Name the product at the anode.
Silver metal does not combine easily with oxygen but silver jewellery tarnishes after some time. How?
Why do gold ornaments look new even after several years of use?
Name two metals which occur in nature in free state as well as in combined state.
Describe with one example, how moderately reactive metals (which are in the middle of reactivity series) are extracted.
Name the chemical compound which is electrolysed in molten state to obtain aluminium metal. Which gas is evolved during this process?
How is sodium metal extracted? Explain with the help of equation of the reaction involved.
Name three other metals which are extracted in a manner similar to sodium.
Which metal is extracted from bauxite ore?
Which metal is extracted from calamine ore?
The metal which is always present in an amalgam is:
(a) iron
(b) aluminium
(c) mercury
(d) magnesium
In an electrolytic tank, aluminium metal is being extracted by the electrolysis of molten aluminium oxide using carbon electrodes. It is observed that one of the carbon electrodes is gradually burnt away and has to be replaced.
(a) Which carbon electrode (cathode or anode) is burnt away?
(b) Why is this carbon electrode burnt away?
Give reasons, why aluminum is used in:
In aluminiothermy
Complete the incomplete statement with missing word:
Metals form positive ions while non- metals ______.
In electrolytic reduction of alumina _______ is used as a cathode.
Aluminium oxide is _______ oxide.
_______ is the least reactive metal.
Explain the following reaction with the balanced equation.
Sodium aluminate reacts with water
Oxides of moderately reactive metals like Zinc, Iron, Nickel, Tin, Copper, etc. are reduced by using:
Why should the metal sulphides and carbonates be converted to metal oxides in the process of extraction of metal from them?
