Give reasons for the following:(i) Sodium is more reactive than aluminium.(ii) Mercury is not the only metallic liquid at around 30 C.(iii) Metals always combine by electrovalency.(iv) Metal ions are always positively charged.(v) Metal ions always get discharged at the cathode during electrolysis.(vi) Metals generally do not form hydrides.(vii) Metals are always monoatomic.(viii) Sodium and potassium cannot be kept exposed to air.(ix) Sodium and potassium should not be treated with acids.(x) Hydrogen is not a metal but it has been assigned a place in the reactivity series of metals.

Give reasons for the following:(i) Sodium is more reactive than alumin

1.	Give reasons for the following:(i) Sodium is more reactive than aluminium.(ii) Mercury is not the only metallic liquid at around 30 C.(iii) Metals always combine by electrovalency.(iv) Metal ions are always positively charged.(v) Metal ions always get discharged at the cathode during electrolysis.(vi) Metals generally do not form hydrides.(vii) Metals are always monoatomic.(viii) Sodium and potassium cannot be kept exposed to air.(ix) Sodium and potassium should not be treated with acids.(x) Hydrogen is not a metal but it has been assigned a place in the reactivity series of metals.
Answer» Give reasons for the following: (i) Sodium is more reactive than aluminium. (ii) Mercury is not the only metallic liquid at around 30 C. (iii) Metals always combine by electrovalency. (iv) Metal ions are always positively charged. (v) Metal ions always get discharged at the cathode during electrolysis. (vi) Metals generally do not form hydrides. (vii) Metals are always monoatomic. (viii) Sodium and potassium cannot be kept exposed to air. (ix) Sodium and potassium should not be treated with acids. (x) Hydrogen is not a metal but it has been assigned a place in the reactivity series of metals.