Chemistry The gas which turns into liquid at the lowest temperature among the following is Oxygen Hydrogen Nitrogen Helium Oxygen Hydrogen Nitrogen Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry ________ gives hardness to stainless steel. Carbon Lead Zinc Tin Carbon Lead Zinc Tin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . X–rays Ultraviolet rays (UV) Gamma rays Infra-red (IR) X–rays Ultraviolet rays (UV) Gamma rays Infra-red (IR) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The monomer of polythene is None of these vinyl chloride ethylene ethyl alcohol None of these vinyl chloride ethylene ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The smog is essentially caused by the presence of Oxides of N and S O2 and N2 O2 and O3 O3 and N2 Oxides of N and S O2 and N2 O2 and O3 O3 and N2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element used for making solar cells is Calcium Sodium Magnesium Silicon Calcium Sodium Magnesium Silicon ANSWER DOWNLOAD EXAMIANS APP
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