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