MCQ
Which is the weakest base
- A$NaOH$
- B$KOH$
- C$Ca{(OH)_2}$
- ✓$Zn{(OH)_2}$
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$(1)$ $\frac{3}{2} O _2( g ) \rightarrow O _3$ $(g)$
$(2)$ $\frac{1}{8} S _8( s )+ O _2( g ) \rightarrow SO _2( g )$
$(3)$ $2 H _2( g )+ O _2( g ) \rightarrow 2 H _2 O (l)$
$(4)$ $2 C ( g )+3 H _2( g ) \rightarrow C _2 H _6( g )$
{$E\, =$ Central atom, $B\, =$ Terminal atom, $L\, =$ Lone pair}
$(a)$ $CO < C{O_2} < CO_3^{2 - }$ $ \Rightarrow $ Bond length
$(b)$ ${O_2} < {O_3} < O_2^{ - 2}$ $ \Rightarrow $ Bond length
$(c)$ ${N_2} < N_2^ + $ $ \Rightarrow $ Bond energy
