M is a metal above hydrogen in the activity series and its oxide has t

1.	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:(i) What kind of combination exists between M and O ?(ii) How many electrons are there in the outermost shell of M ?(iii) Name the group to which M belongs. (iv) State the reaction taking place at the cathode.(v) Name the product at the anode
Answer» (i) Electrovalent bond exists between M and O. (ii) One electron is there in the outermost shell. (iii) M belongs to First group. (iv) M⁺ + e^– ⟶ M (at cathode). M + M ⟶ M₂ (v) Oxygen gas is liberated at anode.

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:(i) What kind of combination exists between M and O ?(ii) How many electrons are there in the outermost shell of M ?(iii) Name the group to which M belongs. (iv) State the reaction taking place at the cathode.(v) Name the product at the anode

Answer»

(i) Electrovalent bond exists between M and O.

(ii) One electron is there in the outermost shell.

(iii) M belongs to First group.

(iv) M⁺ + e^– ⟶ M (at cathode).

M + M ⟶ M₂

(v) Oxygen gas is liberated at anode.

Discussion

No Comment Found

Related InterviewSolutions

To carry out the so-called “electrolysis of water”. Sulphuric acid is added to water.How does the addition of sulpuric acid produce a conducting solution?
With reference to electroplating answer the following :(i) Why are articles electroplated ?(ii) Why a small current passed for a longer period is preferred over high current for a shorter period ?(iii) Why the article to be electroplated is made a cathode ? (iv) Why a direct current is used ?
How a spoon is electroplated with silver ?
Explain, how the blue colour of electrolyte fades during electrolysis of CuSO4 solution ?
Give the electrode reactions for formation of1. Lead metal and bromine vapours from molten PbBr2 using inert electrodes2. H2 and O2 gas (2:1) from acidified water using inert Pt electrodes.
State your observation: At the cathode when acidified aq. CuSO4 spin. is electrolyzed with copper electrodes.
Differentiate between an Electrolytic cell and Electrochemical cell.
Choose A, B, C or D to match the descriptions (i) to (v) below. Some alphabets may be repeated.A. non-electrolyteB. strong electrolyteC. Weak electrolyteD. metallic conductor(i) Molten ionic compound(ii) Carbon tetrachloride(iii) An aluminium wire(iv) A solution containing solvent molcules, solute molecules and ions formed by the dissociation of solute molecules.(v) A sugar solution with sugar molecules and water molecules.
To carry out the so-called “electrolysis of water”, sulphuric acid is added to water. How does the addition of sulphuric acid produce a conducting solution?
Compare the flow of electricity through a nickel wire and nickel sulphate solution.

Discussion

No Comment Found

Related InterviewSolutions

Reply to Comment