MCQ
How does the surface tension of a liquid vary with increase in temperature?
- ARemains same.
- ✓surface
- CIncreases.
- Ddecreases.
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$(II)\, O^+_2 ,NO,N^-_2$ have same bond order of $2 \frac{1}{2}$
$(III)$ Bond order can assume any value including zero upto four
$(IV)\, NO^-_3$ and $BO^-_3$ have same bond order for $X - O$ bond (where $X$ is central atom)
$STATEMENT$-$2$: In water, orthoboric acid acts as a proton donor.