Chemistry The coating of a thin layer of zinc on steel or iron objects is known as Galvanising Tinning Electroplating Hot dipping Galvanising Tinning 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 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 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 : 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 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 Nickel, Lead and Chromium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In galvanization, iron is coated with Tin Nickel Zinc Copper Tin Nickel Zinc Copper ANSWER DOWNLOAD EXAMIANS APP
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