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 pink to blue-green From blue to pink From brown to orange-red From brown to blue-black From pink to blue-green From blue to pink From brown to orange-red From brown to blue-black ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used for refrigeration? Chlorine Sulphur dioxide Phosphine Freon Chlorine Sulphur dioxide Phosphine Freon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The items amenable to detection by soft x-rays are contrabands lead in bullets narcotics genuine coins from counterfeit coins contrabands lead in bullets narcotics genuine coins from counterfeit coins ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following could be used as fuel in propellant or rockets ? Liquid Hydrogen + Liquid Oxygen Liquid Nitrogen + Liquid Oxygen Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon Liquid Hydrogen + Liquid Oxygen Liquid Nitrogen + Liquid Oxygen Liquid Hydrogen + Liquid Nitrogen Liquid Oxygen + Liquid Argon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The absolute temperature of a gas is doubled and the pressure is reduced to half, the volume of the gas Will be reduced to half Will be doubled Remains unchanged Will increase four-fold Will be reduced to half Will be doubled Remains unchanged Will increase four-fold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sulphur dioxide present in the industrial chimney exhaust causes Corrosion building materials Respiratory and lung disease All of these Reduction in plant's productivity owing to acid rain Corrosion building materials Respiratory and lung disease All of these Reduction in plant's productivity owing to acid rain ANSWER DOWNLOAD EXAMIANS APP
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