Chemistry The number of d-electrons in Fe2+ (Z = 26) is not equal to that of d-electrons in Fe(Z = 26) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) d-electrons in Fe(Z = 26) p-electrons in Ne(Z = 10) s-electrons in Mg(Z = 12) p-electrons in CI(Z = 17) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a natural dye ? Aniline blue Phenolphthalein Crystal violet Alizarin Aniline blue Phenolphthalein Crystal violet Alizarin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following acids is used in battery ? Sulphuric acid Hydrofluoric acid Hydrochloric acid Sulphurous acid Sulphuric acid Hydrofluoric acid Hydrochloric acid Sulphurous acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms Atoms in all matter Electrons in atoms Nucleus in atoms Neutrons in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atomic number is the number equal to Protons Neutrons Electrons None of these Protons Neutrons Electrons None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Most poisonous pollutant in water is Zinc Arsenic Phosphate Detergent Zinc Arsenic Phosphate Detergent ANSWER DOWNLOAD EXAMIANS APP