Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ N3- > Na+ > O2- > F- Na+ > O2- > N3- > F- O2- > F- > Na+ > N3- N3- > O2- > F- > Na+ N3- > Na+ > O2- > F- Na+ > O2- > N3- > F- ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Positrons Neutrons Electrons Protons Positrons Neutrons Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water None of these Calcium Manganese Magnesium None of these Calcium Manganese Magnesium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents are None of these Sodium salts of fatty acids Sodium salts of sulphonic acids Sodium salt of benzoic acid None of these Sodium salts of fatty acids Sodium salts of sulphonic acids Sodium salt of benzoic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The pH of lemon juice is expected to be Nothing can be predicted Less than 7 Equal to 7 More than 7 Nothing can be predicted Less than 7 Equal to 7 More than 7 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas which is mainly responsible for the green house effect is: Carbon dioxide Oxygen Carbon monoxide Ozone Carbon dioxide Oxygen Carbon monoxide Ozone ANSWER DOWNLOAD EXAMIANS APP
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