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30. Iron is galvanized by coating witha) nickelb) tinc) zincd) copper31. Which of the following element will form basic oxides?a) Sulphur b) Nitrogenc) Sodiuma) Carbon32.The green coating on the top of the copper vessel is a mixture ofa) Cuso4, and Cuco3b) Cu(OH)2 and CO,c) Caso: and C02d) Cu(OH), and Cuco3d) Carbon33. Name the non-metal which is applied on wounds as an antiseptic.a) iodine b) Nitrogenc) ChlorineSO, + H2Oa) H.S.O,b) H.SO, c) H-SO. d) H 3.0,35. Name the metal present in the hoemoglobin of blood.a) Cub) Fe c) N, d) Na |
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Answer» green coating on the TOP of the copper vessel is a mixture of-cu(oh) 2 andCO*33 NON metal which is APPLIED on the wounds is-iodine35metal present in the hemoglobin of blood is-iron (fe) |
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