i. Zinc replaces copper from copper sulphate solution.
ii. Iron replaces copper from copper sulphate solution.
iii. Copper replaces silver from silver nitrate solution.
iv. Zinc replaces hydrogen from hydrochloric acid.
v. Magnesium replaces hydrogen from sulphuric acid.
Answer:
1)Mg+2HCl→MgCl2+H2.
2)Zn+H2SO4→ZnSO4+H2.
3)Zn+CuSO4→ZnSO4+Cu.
4)2NaBr+Cl2→2NaCl+Br2.
5)CH4+Cl2→CH3Cl+HCl.
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i. Zinc replaces copper from copper sulphate solution.
ii. Iron replaces copper from copper sulphate solution.
iii. Copper replaces silver from silver nitrate solution.
iv. Zinc replaces hydrogen from hydrochloric acid.
v. Magnesium replaces hydrogen from sulphuric acid.
Answer:
1)Mg+2HCl→MgCl2+H2.
2)Zn+H2SO4→ZnSO4+H2.
3)Zn+CuSO4→ZnSO4+Cu.
4)2NaBr+Cl2→2NaCl+Br2.
5)CH4+Cl2→CH3Cl+HCl.