Chemistry Hardness of the water is commonly measured in terms of Calcium sulphate equivalents Magnesium carbonate equivalents Calcium carbonate equivalents Magnesium sulphate equivalents Calcium sulphate equivalents Magnesium carbonate equivalents Calcium carbonate equivalents Magnesium sulphate equivalents ANSWER DOWNLOAD EXAMIANS APP
Chemistry Major portion of the earth’s crust is mainly constituted by Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron Silicon and Iron Oxygen and Silicon Silicon and Aluminium Oxygen and Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere? Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbons Carbon dioxide Sulphur dioxide Nitrous oxide Chlorofluorocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The anode in a dry cell consists of Graphite Cadmium Copper Zinc Graphite Cadmium Copper Zinc ANSWER DOWNLOAD EXAMIANS APP
Chemistry PH scale ranges from 0 – 7 8 – 14 0 – 14 None 0 – 7 8 – 14 0 – 14 None ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus always less than its atomic number always more than the atomic weight a fraction the sum of the number of protons and neutrons present in the nucleus ANSWER DOWNLOAD EXAMIANS APP
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