Chemistry A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed? From brown to orange-red From blue to pink From pink to blue-green From brown to blue-black From brown to orange-red From blue to pink From pink to blue-green From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the inert gases can form compounds? Helium Krypton Argon Xenon Helium Krypton Argon Xenon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following gases is most toxic ? Chlorine Carbon dioxide Sulphur dioxide Carbon monoxide Chlorine Carbon dioxide Sulphur dioxide Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of skimming tank in sewage treatment is to remove Gritty substances Inorganic substances Suspended solids Oil and fatty substances Gritty substances Inorganic substances Suspended solids Oil and fatty substances ANSWER DOWNLOAD EXAMIANS APP
Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 10, 8 2, 6, 8, 4 2, 8, 10 2, 8, 8, 2 2, 10, 8 2, 6, 8, 4 2, 8, 10 2, 8, 8, 2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The degree of dissociation of an electrolyte depends on Method of dissolution Atmospheric pressure Dilution Impurities Method of dissolution Atmospheric pressure Dilution Impurities ANSWER DOWNLOAD EXAMIANS APP
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