MCQ
When a lead storage battery is discharged
- A$SO_2$is evolved
- BLead sulphate is consumed
- CLead is formed
- ✓Sulphuric acid is consumed
$Pb + Pb{O_2} + 2{H_2}S{O_4}$ $\underset{{\operatorname{Re} ch\arg e}}{\overset{{Disch\arg e}}{\longleftrightarrow}}$ $2PbS{O_4} + 2{H_2}O$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$A : 3\,, 2\,, -2\,, +\, \frac{1}{2}$
$B : 3\,, 0\,, 0\,, + \,\frac{1}{2}$
What is true for $A$ and $B$
$(a)$ $R_2SiO$ is repeating unit of linear silicones
$(b)$ $RSiCl_3$ on hydrolysis followed by dehydration gives linear silicones
$(c)$ Silicones can be used as heat insulator
$(d)$ Silica is soluble in $HF$
The correct statement$(s)$ is/are
ppt $\rightarrow$ colour