1.

Name the following:(i) The kind of elements that ionize by losing electrons.(ii) The kind of elements that ionize by gaining electrons.(iii) Two metals that do not get oxidized at high temperature.(iv) Two metals that get oxidized just by exposure to air.(v) Three metals that react with cold water to liberate hydrogen.(vi) A metal which in the red hot state reacts with steam reversibly to produce hydrogen.(vii) Two metals that react explosively with acids.(viii) A metal that does not react with hydrochloric or sulphuric acid.(ix) Two metals that dissolve only in aqua regia.(x) Two metallic oxides that get decomposed by heat.(xi) Two metallic hydroxides that dissolve in water to give alkalis.(xii) Two metal carbonates which are soluble in water.(xiii) Two metal carbonates that do not decompose when heated.(xiv) Two metallic nitrates which yield oxygen as the only gaseous product when heated.(xv) Two metallic nitrates when heated decompose to yield respective metals.

Answer» Name the following:

(i) The kind of elements that ionize by losing electrons.

(ii) The kind of elements that ionize by gaining electrons.

(iii) Two metals that do not get oxidized at high temperature.

(iv) Two metals that get oxidized just by exposure to air.

(v) Three metals that react with cold water to liberate hydrogen.

(vi) A metal which in the red hot state reacts with steam reversibly to produce hydrogen.

(vii) Two metals that react explosively with acids.

(viii) A metal that does not react with hydrochloric or sulphuric acid.

(ix) Two metals that dissolve only in aqua regia.

(x) Two metallic oxides that get decomposed by heat.

(xi) Two metallic hydroxides that dissolve in water to give alkalis.

(xii) Two metal carbonates which are soluble in water.

(xiii) Two metal carbonates that do not decompose when heated.

(xiv) Two metallic nitrates which yield oxygen as the only gaseous product when heated.

(xv) Two metallic nitrates when heated decompose to yield respective metals.


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