Question

$\sf\bigstar \: standard - 9th \\ \sf\bigstar \: chemistry \: question$
$\underline{\underline \bold \red{balance \: the \: following \: equations : - }}$
$\bold{Cu+H_2SO_4 \tiny[conc.] }\bold {\Rightarrow CuSO_4 + H_2O + SO_2 }$
$\bold{S+H_2SO_4 \tiny[conc.] } \bold{\Rightarrow \: SO_2 + H_2O}$
$\bold{HNO_3 \Rightarrow \: H_2O +NO_2 + O_2 }$
$\bold{Pb(NO_3)_2 + NaCl \Rightarrow \: NaNO_3 + PbCl_2}$
$\bold{Fe+ HCl \Rightarrow \: FeCl_2 +H_2 }$
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$\sf\leadsto \: give \: right \: answer \: only \: \\ \sf\leadsto \: do \: not \: spam$
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Answer 1

$\large \underline{\underline \bold \blue{Balancing \: the \: following \: equations : - }}$

1) $\bold{Cu+H_2SO_4 \tiny[conc.] }\bold {\Rightarrow CuSO_4 + H_2O + SO_2 }$

$\sf \implies {\red{Cu+2H_2SO_4 {\Rightarrow CuSO_4 +2 H_2O + SO_2 }}}$

• Single Displacement Reaction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━

2) $\bold{S+H_2SO_4 \tiny[conc.] } \bold{\Rightarrow \: SO_2 + H_2O}$

$\sf \implies {\red{S+2H_2SO_4 {\Rightarrow \: 3SO_2 + 2H_2O}}}$

• Single Displacement Reaction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━

3) $\bold{HNO_3 \Rightarrow \: H_2O +NO_2 + O_2 }$

$\sf\implies {\red{4HNO_3 \Rightarrow \: 2H_2O +4NO_2 + O_2 }}$

• Decomposition Reaction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━

4) $\bold{Pb(NO_3)_2 + NaCl \Rightarrow \: NaNO_3 + PbCl_2}$

$\sf \implies {\red{Pb(NO_3)_2 + 2NaCl \Rightarrow \: 2NaNO_3 + PbCl_2}}$

• Double Displacement Reaction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━

5) $\bold{Fe+ HCl \Rightarrow \: FeCl_2 +H_2 }$

$\sf \implies {\red{Fe+ 2HCl \Rightarrow \: FeCl_2 +H_2 }}$

• Single Displacement Reaction

━━━━━━━━━━━━━━━━━━━━━━━━━━━━