Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Tinning Electroplating Hot dipping Galvanising Tinning Electroplating Hot dipping Galvanising 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 blue-black From pink to blue-green From brown to orange-red From blue to pink From brown to blue-black From pink to blue-green From brown to orange-red From blue to pink 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) Battery Generator Power transmittor Uninterrupted power supply (UPS) Battery Generator Power transmittor ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metals commonly used for electroplating are Nickel, Lead and Chromium Gold, Sodium and Chromium Gold, Sodium and Potassium Chromium, Copper and Nickel Nickel, Lead and Chromium Gold, Sodium and Chromium Gold, Sodium and Potassium Chromium, Copper and Nickel ANSWER DOWNLOAD EXAMIANS APP
Chemistry In galvanization, iron is coated with Copper Tin Zinc Nickel Copper Tin Zinc Nickel ANSWER DOWNLOAD EXAMIANS APP
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