MCQ
Lead pipes are not suitable for drinking water because
- AA layer of lead dioxide is deposited over pipes
- BLead reacts with air to form litharge
- ✓Lead reacts with water containing air to form $Pb{(OH)_2}$
- DLead forms basic lead carbonate
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| List$-I$ | List$-II$ | ||
| $(a)$ | Sucrose | $(i)$ |
$\beta$ -D-Galactose and $\beta$ -D-Glucose |
| $(b)$ | Lactose | $(ii)$ | $\alpha$ -D-Glucose and $\beta$ -D-Fructose |
| $(c)$ | Maltose | $(iii)$ | $\alpha$ -D-Glucose and $\alpha$ -D-Glucose |
Choose the correct answer from the options given below:


$2 Fe _{( s )}+ O _{2( g )}+4 H _{( aq )}^{+} \rightarrow 2 Fe _{( aq )}^{2^{+}}+2 H _2 O ( l ) \quad E ^{\circ}=1.67 V$, At $\left[ Fe ^{2+}\right]=10^{-3} M , P \left( O _2\right)=0.1$ atm and $pH =3$, the cell potential at $25^{\circ} C$ is
$S{O_2}C{l_2}\left( g \right) \rightleftharpoons S{O_2}\left( g \right) + C{l_2}\left( g \right)$
$CO\left( g \right) + C{l_2}\left( g \right) \rightleftharpoons COC{l_2}\left( g \right)$
on adding more $SO_2$ at equilibrium what will happen?