MCQ
Mass and energy are conserved is demonstrated by
- AFirst law of thermodynamics
- BLaw of conservation of energy
- CLaw of conservation of mass
- ✓Modified form of 1st law of thermodynamics
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$O ^{2-}, N ^{3-}, F ^{-}, Mg ^{2+}, Na ^{+}$ and $Al ^{3+}$ is
$'X'\,\,\xrightarrow{{water}}$ Insoluble
$'X'\xrightarrow{{5\% \,HCl}}$ Insoluble
$'X'\xrightarrow{{10\% \,NaOH}}$ Insoluble
$'X'\xrightarrow{{10\% \,NaHC{O_3}}}$ Insoluble