Chemistry The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is oxygen carbon nitrogen hydrogen oxygen carbon nitrogen hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionic radii of N3-, O2-, F- and Na+ follows the order N3- > Na+ > O2- > F- N3- > O2- > F- > Na+ O2- > F- > Na+ > N3- Na+ > O2- > N3- > F- N3- > Na+ > O2- > F- N3- > O2- > F- > Na+ O2- > F- > Na+ > N3- Na+ > O2- > N3- > F- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and b C and d B and c A and c A and b C and d B and c A and c ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH value between 6.5-7.5 makes the soil Neutral Basic Acidic None of these Neutral Basic Acidic None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Sulphur dioxide Chlorine Carbon dioxide Carbon monoxide Sulphur dioxide Chlorine Carbon dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical used in developing photographic films is Silver bromide Hypo Hydroquinone Sodium sulphate Silver bromide Hypo Hydroquinone Sodium sulphate ANSWER DOWNLOAD EXAMIANS APP
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