MCQ
Borax has the molecular formula
- A$Na_2[B_4O_3(OH)_4].6H_2O$
- B$Na_2[B_4O_5(OH)_4].6H_2O$
- ✓$Na_2[B_4O_5(OH)_4].8H_2O$
- D$Na_2[B_4O_6(OH)_2].8H_2O$
Formula of borax is $Na _2\left[ B _4 O _5( OH )_4\right] \cdot 8 H _2 O$.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\text { (iii) } \mathrm{HBr}{(iv) \mathrm{Mg}, ether, then \mathrm{HCHO} / \mathrm{H}_3 \mathrm{O}^{+}}]{{(i)BH_3}{\text { (ii) } \mathrm{H}_2 \mathrm{O}_2,{ }^{\text {(-) }} \mathrm{OH}}} \mathrm{A}$