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Chemistry CBSE Live product
Class 10
Chemical reaction and equations
PT1 Revision - Chemical reactions and equations
2.
Reaction of magnesium ribbon
Question:
2
m.
Answer the following questions:
1.
Why is it necessary to clean the magnesium ribbon before burning?
To add a protective coating that slows down burning
To cool down the metal and slow oxidation
To remove the oxide layer and allow for faster burning
To cover the ribbon with impurities for slower burning
2.
Provide the balanced equation for the reaction between barium chloride and aluminium sulphate to produce barium sulphate and aluminium chloride.
\(3BuCl_2\) +\(Al_2(SO_3)_3\) → \(3BeSO_4\) + \(2AlCl_3\)
\(3BaCl_2\) +\(Al_2(SO_4)_3\) → \(3BaSO_4\) + \(2AlCl_3\)
\(3BaCl_2\) +\(Al_2(SO_3)_3\) → \(3BuSO_4\) + \(2AlCl_3\)
\(2BaCl_2\) +\(Al_2(SO_3)_3\) → \(3BeSO_4\) + \(2AlCl_3\)
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