A) \[x=2,\text{ }y=5,\text{ }z=10\]
B) \[x=2,\text{ }y=7,\text{ }z=8\]b
C) \[x=2,\text{ }y=5,\text{ }z=8\]
D) \[x=2,\text{ }y=5,\text{ }z=5\]
Correct Answer: A
Solution :
[a] The balance equation is \[\underset{\overset{\uparrow }{\mathop{x}}\,}{\mathop{2MnO}}\,+\underset{\overset{\uparrow }{\mathop{y}}\,}{\mathop{5Pb{{O}_{2}}}}\,+10H\underset{\overset{\uparrow }{\mathop{z}}\,}{\mathop{N{{O}_{3}}}}\,\to 2HMn{{O}_{4}}+5pb{{(N{{O}_{3}})}_{2}}\text{ }+4{{H}_{2}}O\]
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