Metals extracted by electrolysis are— (i) Na (ii) Al (iii) Fe

এই অধ্যায়ের আরও প্রশ্ন

• C-10-Q170Sulfur is used in— (i) preparation of (ii) vulcanization of rubber (iii) sulfanilamide medicine
• C-10-Q171Concentrated shows— (i) acid property (ii) oxidation property (iii) dehydrating property
• C-10-Q172Common alloys of copper— (i) brass (ii) bronze (iii) duralumin
• C-10-Q173Methods of preventing metal corrosion— (i) painting (ii) galvanizing (iii) electroplating
• C-10-Q174Which row in the table has properties of a metal? (high MP, high BP, high density)
• C-10-Q175Among Cu, Zn, Fe, Pb, the most reactive is—
• C-10-Q176Which is a gangue commonly associated with bauxite ore?
• C-10-Q177Mg metal cannot be extracted by carbon reduction because—
• C-10-Q178Cryolite is added during aluminium extraction to—
• C-10-Q179Brass is called an alloy of—