Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) s-electrons in Mg(Z = 12) p-electrons in Ne(Z = 10) d-electrons in Fe(Z = 26) p-electrons in CI(Z = 17) s-electrons in Mg(Z = 12) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material used in solar cells contains Thallium Tin Silicon Caesium Thallium Tin Silicon Caesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Solder metal is an alloy of Lead and tin Lead and antimony Copper and tin Copper and zinc Lead and tin Lead and antimony Copper and tin Copper and zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry Aquaregia is a mixture of the following in the ratio 1 : 3 by volume Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 Conc. HCl and conc. HNO3 Conc. HNO3 and conc. HCl Conc. HNO3 and conc. H2SO4 Dil. HCl and dil. HNO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Sulphur dioxide Carbon dioxide Nitric oxide Peroxyacetyl nitrate Sulphur dioxide Carbon dioxide Nitric oxide Peroxyacetyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanization is the : Deposition of aluminium on iron Deposition of copper on iron Deposition of zinc on iron Deposition of tin on iron Deposition of aluminium on iron Deposition of copper on iron Deposition of zinc on iron Deposition of tin on iron ANSWER DOWNLOAD EXAMIANS APP
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