PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoSelect the appropriate answer for the given question:
Answer variants:
(a) Magnesium ribbon on reaction with dilute hydrochloric acid gives magnesium chloride with liberation of \(H_2\)
\(Mg + 2HCl \rightarrow MgCl_2 + H_2\)
(b) Sodium hydroxide on reaction with dilute hydrochloric acid gives sodium chloride and water.
\(NaOH + HCl \rightarrow NaCl + H_2O\)
(c) Crushed egg shells on reaction with dilute hydrochloric acid gives calcium chloride, water and carbon dioxide.
\(CaCO_3 + 2HCl \rightarrow CaCl2 + CO_2 + H_2O\)
\(Mg + 2HCl \rightarrow MgCl_2 + H_2\)
(b) Sodium hydroxide on reaction with dilute hydrochloric acid gives sodium chloride and water.
\(NaOH + HCl \rightarrow NaCl + H_2O\)
(c) Crushed egg shells on reaction with dilute hydrochloric acid gives calcium chloride, water and carbon dioxide.
\(CaCO_3 + 2HCl \rightarrow CaCl2 + CO_2 + H_2O\)
(a) Hydrochloric acid reacts with caustic soda
\(Zn + 2NaOH \rightarrow Na_2ZnO_2 + H2_O\)
(b) Granulated zinc reacts with caustic soda
\(Ca(OH)_2 + CO_2 \rightarrow CaCO_3 + H2_O\)
(c) Carbon dioxide is passed through lime water
\(NaOH + HCl \rightarrow NaCl + H2_O\)
\(Zn + 2NaOH \rightarrow Na_2ZnO_2 + H2_O\)
(b) Granulated zinc reacts with caustic soda
\(Ca(OH)_2 + CO_2 \rightarrow CaCO_3 + H2_O\)
(c) Carbon dioxide is passed through lime water
\(NaOH + HCl \rightarrow NaCl + H2_O\)
When an acid and a base combine, a chemical reaction occurs, resulting in the formation of salt and water. The procedure is known as a neutralisation reaction.
For example,
1. \(NaOH + HCl \rightarrow NaCl + H_2O\)
2. \(Na_2CO_3 + 2HCl \rightarrow 2NaCl + H_2O + CO_2\)
For example,
1. \(NaOH + HCl \rightarrow NaCl + H_2O\)
2. \(Na_2CO_3 + 2HCl \rightarrow 2NaCl + H_2O + CO_2\)
1. Explain the action of dilute hydrochloric acid on the following with suitable chemical equations:
(a) Magnesium ribbon
(b) Sodium hydroxide
(c) Crushed egg shells.
(a) Magnesium ribbon
(b) Sodium hydroxide
(c) Crushed egg shells.
2. What is neutralisation reaction? Give two examples.
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