Complete the following reactions and balance them- -5 MARKS-i P b 3 O 4- HCl -ii ZnS - HCl -iii K 2 O - HCl -iv KMnO 4- HCl -v HNO 3- HCl -

Each Part: 1 Mark (i) Pb_3O_4 + 8HCl → 3PbCl_2 + 4H_2O + Cl_2 (ii) ZnS + 2HCl → ZnCl_2 + H_2S (iii) K_2O + 2HCl → 2KCl + H_2O (iv) 2KMnO_4 + 16HCl→ 2KCl + 2MnC ...

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Standard X

Chemistry

Reaction of Metallic Oxides and Hydroxides with Acids

Complete the ...

Question

Complete the following reactions and balance them: [5 MARKS]
(i) $P b_{3} O_{4} + H C l \to$
(ii) $Z n S + H C l \to$
(iii) $K_{2} O + H C l \to$
(iv) $K M n O_{4} + H C l \to$
(v) $H N O_{3} + H C l \to$

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Solution

Each Part: 1 Mark

(i) $P b_{3} O_{4} + 8 H C l \to 3 P b C l_{2} + 4 H_{2} O + C l_{2}$
(ii) $Z n S + 2 H C l \to Z n C l_{2} + H_{2} S$
(iii) $K_{2} O + 2 H C l \to 2 K C l + H_{2} O$
(iv) $2 K M n O_{4} + 16 H C l \to 2 K C l + 2 M n C l_{2} + 8 H_{2} O + 5 C l_{2}$
(v) $H N O_{3} + 3 H C l \to 2 H_{2} O + N O C l + 2 C l$

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Q. Complete the following reactions and balance them: [5 MARKS]
(i)

N a C I + H_{2} S O_{4} < 200 \circ C - ---- \to

(ii)

N a C I + H_{2} S O_{4} > 200 \circ C - ---- \to

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N H_{3} + H C l \to

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N a_{2} C O_{3} + H C l \to

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Q. Complete and balance the following reactions: [4 MARKS]
(a)

K C l + H_{2} S O_{4} (c o n c .) \to

(b)

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Q. Complete and balance the following equations:
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\overset{}{\to}

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\overset{}{\to}

(iii) Fe + HNO₃ (conc.)

\overset{}{\to}

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\overset{}{\to}

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\overset{}{\to}

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Q. Balance the following equations:
i)

C a C O_{3} + H C l \to C a C l_{2} + C O_{2} ↑ + H_{2} O

ii)

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iii)

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iv)

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P b_{3} O_{4} + H C l \to P b C l_{2} + C l_{2} ↑ + H_{2} O

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Complete the following reactions and balance them: [5 MARKS] (i) Pb3O4+HCl→ (ii) ZnS+HCl→ (iii) K2O+HCl→ (iv) KMnO4+HCl→ (v) HNO3+HCl→

Each Part: 1 Mark (i) Pb3O4+8HCl→ 3PbCl2+4H2O+Cl2 (ii) ZnS+2HCl→ ZnCl2+H2S (iii) K2O+2HCl→ 2KCl+H2O (iv) 2KMnO4+16HCl→ 2KCl+2MnCl2+8H2O+5Cl2 (v) HNO3+3HCl→ 2H2O+NOCl+2Cl

Complete the following reactions and balance them: [5 MARKS]
(i) $P b_{3} O_{4} + H C l \to$
(ii) $Z n S + H C l \to$
(iii) $K_{2} O + H C l \to$
(iv) $K M n O_{4} + H C l \to$
(v) $H N O_{3} + H C l \to$