Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Tinning Galvanising Electroplating Hot dipping Tinning Galvanising Electroplating Hot dipping ANSWER DOWNLOAD EXAMIANS APP
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 An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Uninterrupted power supply (UPS) Power transmittor Generator Battery Uninterrupted power supply (UPS) Power transmittor Generator Battery ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metals commonly used for electroplating are Chromium, Copper and Nickel Nickel, Lead and Chromium Gold, Sodium and Potassium Gold, Sodium and Chromium Chromium, Copper and Nickel Nickel, Lead and Chromium Gold, Sodium and Potassium Gold, Sodium and Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In galvanization, iron is coated with Zinc Nickel Copper Tin Zinc Nickel Copper Tin ANSWER DOWNLOAD EXAMIANS APP
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