Identify the type of reactions in the following equations-i CH4-2O2- 2H2Oii PbNO32-2KI - PbI2-2KNO2iii CaO-H2O- CaOH2iv CuSO4-Zn-ZnSO4-Cu

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Standard VIII

Chemistry

Summary of Chemical Reactions

Identify the ...

Question

Identify the type of reaction(s) in the following equations.
(i) $C H_{4} + 2 O_{2} \to 2 H_{2} O$
(ii) $P b (N O_{3})_{2} + 2 K I \to P b I_{2} + 2 K N O_{2}$
(iii) $C a O + H_{2} O \to C a (O H)_{2}$
(iv) CuSO_4+Zn\rightarrow ZnSO_4+Cu\)

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Solution

(i) Combustion reaction and Redox reaction.
(ii) Double displacement reaction and precipitation reaction.
(iii) Combination reaction.
(iv) Displacement reaction.

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Q. Identify the type of reaction(s) in the following equations.

(i) C H_{4} + 2 O_{2} \to C O_{2} + 2 H_{2} O

(ii) P b (N O_{3}) 2 + 2 K I \to P b l_{2} + 2 K N O_{3}

(iii) C a O + H_{2} O \to C a (O H)_{2}

(iv) C u S O_{4} + Z n \to Z n S O_{4} + C u

Identify the oxidising agent (oxidant) in the following reactions.

C u S O_{4} + Z n \to C u + Z n S O_{4}

Q. Consider the given graph.

Which of the following reactions is the best fit for the above graph?

(i)

C H_{4} + 2 O_{2} \Rightarrow C O_{2} + 2 H_{2} O

(ii)

C a C O_{3} \to C a O + C O_{2}

(iii)

N_{2} + O_{2} \to 2 N O

Q. How many atoms are present in the given reaction?

{P b ({N O}_{3})}_{2} + 2 K I \to P b I_{2} + 2 K N O_{3}

Given the reaction:-

$P b {(N O_{3})}_{2} (a q) + 2 K I \to P b I_{2} (s) + 2 K N O_{3} (a q)$ What is the mass of $P b I_{2}$ that will precipitate if 10.2 g of $P b {(N O_{3})}_{2}$ is mixed with 5.73 g of $K I$ in a sufficient quantity of $H_{2} O$ ?

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Identify the type of reaction(s) in the following equations. (i) CH4+2O2→2H2O (ii) Pb(NO3)2+2KI→PbI2+2KNO2 (iii) CaO+H2O→Ca(OH)2 (iv) CuSO_4+Zn\rightarrow ZnSO_4+Cu\)

(i) Combustion reaction and Redox reaction. (ii) Double displacement reaction and precipitation reaction. (iii) Combination reaction. (iv) Displacement reaction.

Identify the type of reaction(s) in the following equations.
(i) $C H_{4} + 2 O_{2} \to 2 H_{2} O$
(ii) $P b (N O_{3})_{2} + 2 K I \to P b I_{2} + 2 K N O_{2}$
(iii) $C a O + H_{2} O \to C a (O H)_{2}$
(iv) CuSO_4+Zn\rightarrow ZnSO_4+Cu\)

(i) Combustion reaction and Redox reaction.
(ii) Double displacement reaction and precipitation reaction.
(iii) Combination reaction.
(iv) Displacement reaction.