Match the column I with column II with the type of reaction and mark the appropriate choice- Column IColumn II A 3Mgs - N2g Mg3N2s iDisplacement B NaHs - H2Ol- NaOHaq - H2g iiDecomposition C 3Cl O aq - - 2C l aq - - Cl O3 aq - iiiCombination D 2KClO3s- 2KCls - 3O2g ivDisproportionation

The correct option is D (A)→ (iii) , (B)→ (i) , (C)→ (iv) ,D→ (ii) #160; #160;Column I #160;Column II #160;Reason #160; A 3Mg(s)+N_2( ...

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Byju's Answer

Standard XII

Chemistry

Types of Redox Reactions

Match the col...

Question

Match the column I with column II with the type of reaction and mark the appropriate choice.
Column I Column II
$(A)$ $3 M g_{(} s) + N_{2 (g)} Δ - \to M g_{3} N_{2 (s)}$ $(i)$ Displacement
$(B)$ $N a H_{(} s) + H_{2} O_{(} l) \to N a O H_{(a q)} + H_{2 (g)}$
$(i i)$ Decomposition
$(C)$ $3 C l O_{(a q)}^{-} \to 2 C l_{(a q)}^{-} + C l {O_{3}}_{(a q)}^{-}$ $(i i i)$ Combination
$(D)$ $2 K C l O_{3 (s)} \to 2 K C l_{(} s) + 3 O_{2 (g)}$ $(i v)$ Disproportionation

(A) \to (i), (B) \to (i i i), (C) \to (i i), D \to (i v)

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(A) \to (i v), (B) \to (i i i), (C) \to (i i), D \to (i)

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(A) \to (i i), (B) \to (i), (C) \to (i i i), D \to (i v)

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(A) \to (i i i), (B) \to (i), (C) \to (i v), D \to (i i)

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Solution

The correct option is D $(A) \to (i i i), (B) \to (i), (C) \to (i v), D \to (i i)$
Column I Column II Reason
$A$ $3 M g (s) + N_{2} (g) \to M g_{3} N_{2} (s)$ (iii) Combination A combination reaction is defined as a chemical reaction in
which two or more substances combine to form a single substance under suitable conditions.
$B$ $N a H (s) + H_{2} O (l) \to N a O H (a q) + H_{2} (g)$ (i) Displacement Displacement reaction is a chemical reaction in which a more reactive element (NaH) displaces a less reactive element ( $H_{2} O \to H_{2}$ ) from its compound. Both metals and non-metals take part in displacement reactions.
$C$ $3 C l O^{-} (a q) \to 2 C l^{-} (a q) + C l O_{3}^{-} (a q)$ (iv) Disproportionation Disproportionation reaction is a redox reaction in which a compound of intermediate oxidation state converts to two different compounds, one of higher and one of lower oxidation states as:
$3 + 1 C l O^{-} (a q) \to 2 - 1 C l^{-} (a q) + + 5 C l O_{3}^{-} (a q)$
$D$ $2 K C l O_{3} (s) \to 2 K C l (s) + 3 O_{2} (g)$ (ii) Decomposition A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds.
$(A) - (i i i), (B) - (i), (C) - (i v), D - (i i)$

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	Column I		Column II
$(A)$	$3 M g_{(} s) + N_{2 (g)} Δ - \to M g_{3} N_{2 (s)}$	$(i)$	Displacement
$(B)$	$N a H_{(} s) + H_{2} O_{(} l) \to N a O H_{(a q)} + H_{2 (g)}$	$(i i)$	Decomposition
$(C)$	$3 C l O_{(a q)}^{-} \to 2 C l_{(a q)}^{-} + C l {O_{3}}_{(a q)}^{-}$	$(i i i)$	Combination
$(D)$	$2 K C l O_{3 (s)} \to 2 K C l_{(} s) + 3 O_{2 (g)}$	$(i v)$	Disproportionation

	Column I	Column II	Reason
$A$	$3 M g (s) + N_{2} (g) \to M g_{3} N_{2} (s)$	(iii) Combination	A combination reaction is defined as a chemical reaction in which two or more substances combine to form a single substance under suitable conditions.
$B$	$N a H (s) + H_{2} O (l) \to N a O H (a q) + H_{2} (g)$	(i) Displacement	Displacement reaction is a chemical reaction in which a more reactive element (NaH) displaces a less reactive element ( $H_{2} O \to H_{2}$ ) from its compound. Both metals and non-metals take part in displacement reactions.
$C$	$3 C l O^{-} (a q) \to 2 C l^{-} (a q) + C l O_{3}^{-} (a q)$	(iv) Disproportionation	Disproportionation reaction is a redox reaction in which a compound of intermediate oxidation state converts to two different compounds, one of higher and one of lower oxidation states as: $3 + 1 C l O^{-} (a q) \to 2 - 1 C l^{-} (a q) + + 5 C l O_{3}^{-} (a q)$
$D$	$2 K C l O_{3} (s) \to 2 K C l (s) + 3 O_{2} (g)$	(ii) Decomposition	A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds.