Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Hot dipping Galvanising Tinning Electroplating Hot dipping Galvanising Tinning Electroplating 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 blue to pink 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 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 : Battery Power transmittor Uninterrupted power supply (UPS) Generator Battery Power transmittor Uninterrupted power supply (UPS) Generator ANSWER DOWNLOAD EXAMIANS APP
Chemistry The metals commonly used for electroplating are Gold, Sodium and Potassium Nickel, Lead and Chromium Chromium, Copper and Nickel Gold, Sodium and Chromium Gold, Sodium and Potassium Nickel, Lead and Chromium Chromium, Copper and Nickel Gold, Sodium and Chromium 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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