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