Chemistry Which of the following is used to make light weight, but strong plastic ? Polyvinyl Chloride Polythene Methyl Methacrylate Nylon Polyvinyl Chloride Polythene Methyl Methacrylate Nylon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is least likely to be found in commercial fertilisers? Potassium Silicon Phosphorous Nitrogen Potassium Silicon Phosphorous Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The number of hydrogen bonds between guanine and cytosine in DNA is 1 2 3 4 1 2 3 4 ANSWER DOWNLOAD EXAMIANS APP
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 The buffer action of blood is due to the presence of CI– and [CO3]2– [HCO3]– and H2CO3 CI– and [HCO3]– HCI and NaCI CI– and [CO3]2– [HCO3]– and H2CO3 CI– and [HCO3]– HCI and NaCI ANSWER DOWNLOAD EXAMIANS APP
Chemistry 0.01 mole of NaOH is added to 10 liters of water. The pH of water changes by 4 6 3 7 4 6 3 7 ANSWER DOWNLOAD EXAMIANS APP
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