Chemistry · 2015
JEE Main · 10 April 2015, Shift 1 · Q31
A sample of a hydrate of barium chloride weighing 61 g was heated until all the water of hydration is removed. The dried sample weighed 52 g. The…
A sample of a hydrate of barium chloride weighing $\displaystyle 61$ g was heated until all the water of hydration is removed. The dried sample weighed $\displaystyle 52$ g . The formula of the hydrated salt is : (atomic mass, $\displaystyle \mathrm{Ba}=137 \mathrm{amu}, \mathrm{Cl}=35.5 \mathrm{amu}$ )
Official answer
(2)
$\displaystyle \mathrm{BaCl}_2 \cdot 2 \mathrm{H}_2 \mathrm{O}$
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JEE Main 2015 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.