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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations5 Marks
Question
Match Column I with Column II.
  Column I   Column II
(i) $\text{H}_2(\text{g})\ +\ \text{S(l)}\xrightarrow{\ (\text{boiling})\ \ }\text{H}_2\text{S(g)}$ (A) Dispacement reaction.
(ii) $\text{Zn}\ +\ 2\text{HCl}\ \xrightarrow{\ \ \ \ \ \ \ \ }\text{ZnCl}_2\ +\ \text{H}$ (B) Neutralisation reaction.
(iii) $\text{2NaOH}\ +\ \text{H}_2\text{SO}_4\ \xrightarrow{\ \ \ \ \ \ \ \ \ \ }\text{Na}_2\text{SO}_4\ +\ 2\text{H}_2\text{O}$ (C) Decomposition reaction.
(iv) $2\text{Cu(NO}_3)_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ }2\text{CuO}\ +\ 4\text{NO}_2\ +\ \text{O}_2$ (D) Combination reaction.
✓

Answer

  Column I   Column II
(i) $\text{H}_2(\text{g})\ +\ \text{S(l)}\xrightarrow{\ (\text{boiling})\ \ }\text{H}_2\text{S(g)}$ (C) Decomposition reaction.
(ii) $\text{Zn}\ +\ 2\text{HCl}\ \xrightarrow{\ \ \ \ \ \ \ \ }\text{ZnCl}_2\ +\ \text{H}$ (A) Dispacement reaction.
(iii) $\text{2NaOH}\ +\ \text{H}_2\text{SO}_4\ \xrightarrow{\ \ \ \ \ \ \ \ \ \ }\text{Na}_2\text{SO}_4\ +\ 2\text{H}_2\text{O}$ (B) Neutralisation reaction.
(iv) $2\text{Cu(NO}_3)_2\xrightarrow{\ \ \ \ \ \ \ \ \ \ }2\text{CuO}\ +\ 4\text{NO}_2\ +\ \text{O}_2$ (D) Combination reaction.

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