(i) Processing of dilute sulfuric acid with granular zinc. (ii) Processing dilute hydrochloric acid with a magnesium strip. (iii) Processing of dilute sulfuric acid with magnesium strip. (iv) Processing of dilute hydrochloric acid with iron ore.
Answers
Explanation:
I . When dilute sulphuric acid is poured on zinc granules, then zinc being more reactive than hydrogen displaces it from the acid and forms zinc sulphate and hydrogen gas.
when zinc granules react with dilute sulphuric acid then the product will form is zinc sulphate and removal of hydrogen gas.
ii. When magnesium ribbon reacts with hydrochloric acid, magnesium chloride will be formed and hydrogen gas is liberated. There will be a change in temperature of the test tube, slight fizzing of gas bubbles,then the magnesium ribbon will dissolve into water, leaving in blue.
iii. Magnesium reacts with dilute sulphuric acid to form magnesium sulphate and hydrogen gas. This is a single displacement reaction and also exothermic.
iv. When dilute Hydrochloric acid is added to iron filings, iron . chloride & hydrogen gas is produced. In this reaction iron displaces hydrogen from hydrochloric acid to form iron chloride & hydrogen gas this reaction is a single displacement reaction.
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