Chemistry Which type of radiations are absorbed by the upper layer of the atmosphere? Radio-waves Visible Ultraviolet Infrared Radio-waves Visible Ultraviolet Infrared ANSWER DOWNLOAD EXAMIANS APP
Chemistry The material known in commerce as Terylene is a Blend of cotton and silk Synthetic fibre Modified natural fibre Natural fibre Blend of cotton and silk Synthetic fibre Modified natural fibre Natural fibre ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metal that is usually extracted from sea water is Ca Mg Na K Ca Mg Na K ANSWER DOWNLOAD EXAMIANS APP
Chemistry A mixture of water and alcohol can be separated by Decantation Distillation Evaporation Filtration Decantation Distillation Evaporation Filtration 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 B and c A and b A and c C and d B and c A and b A and c C and d ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contains maximum percentage of carbon ? Wrought iron High speed steel Cast iron Stainless steel Wrought iron High speed steel Cast iron Stainless steel ANSWER DOWNLOAD EXAMIANS APP
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