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শুকনো চোখ, স্থানীয় চুলকানি, স্থানীয় ব্যথা, স্থানীয় ফোলা, পুষ্টি সম্পূরক চিকিৎসায় নির্দেশিত হয়।
(c) Food cans are coated with tin and not with zinc because zinc is more reactive than tin.
1 Answers 1 viewsZinc can be beaten into thin sheets.
1 Answers 1 viewsZinc protects better because oxidation of zinc is greater but that of tin is less than that of iron.
1 Answers 1 viewsZinc is more reactive than copper. Therefore, zinc can displace copper from its salt solution. If copper sulphate solution is stored in a zinc pot, then zinc will displace copper...
1 Answers 1 viewsThe correct answer " NaCN '
1 Answers 1 views[Hint : Zinc reacts at faster rate as compared with copper, further zinc is cheaper than copper.]
1 Answers 1 viewsZnCO3 => ZnO + CO2 (Calcination) ZnO + C => Zn + CO (Reduction)
1 Answers 1 viewsThe extent of metallic bonding an element undergoes decides the enthalpy of atomization. nThe more extensive the metallic bonding of an element, the more will be its enthalpy of atomization....
1 Answers 1 viewsZinc is above hydrogen rvhereas copper is below hydrogen in the activity series of metals. That is why zinc displaces hydrogen from dilute hydrochloric acid, while copper does not. ...
1 Answers 1 viewsWhen zinc reacts with dilute solution of strong acid, it forms salt and hydrogen gas is evolved. Zn + 2HCl ------> 2nCl2 + H2 When a burning splinter is brought near the mouth...
1 Answers 1 views