Chemistry Galena is a mineral of Gold Lead Calcium Iron Gold Lead Calcium Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following acids is used in battery ? Sulphurous acid Hydrofluoric acid Sulphuric acid Hydrochloric acid Sulphurous acid Hydrofluoric acid Sulphuric acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical substance present in bones and teeth is Calcium chloride Calcium borate Calcium sulphate Calcium phosphate Calcium chloride Calcium borate Calcium sulphate Calcium phosphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Green house effect is accelerated by Rapid industrialization Increased transportation activity Deforestation All of these Rapid industrialization Increased transportation activity Deforestation All of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Gamma rays Ultraviolet rays (UV) Infra-red (IR) X–rays Gamma rays Ultraviolet rays (UV) Infra-red (IR) X–rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry The weight of 6.023 × 1022 atoms of carbon is 12 gms 1.2 gms 0.12 gms 120 gms 12 gms 1.2 gms 0.12 gms 120 gms ANSWER DOWNLOAD EXAMIANS APP
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