MCQ
Which of the following is the most electropositive element
- ACarbon
- BCalcium
- CChlorine
- ✓Potassium
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$STATEMENT$-$2$: In water, orthoboric acid acts as a proton donor.
$(i)\, {CCl_3}^-$ $(ii)\,CCl_2$ $(iii)\, (SiH_3)_2O$ $(iv)\, N(SiH_3)_3$