Is Matter Around Us Pure ? — Science STD 9 — Question
Rajasthan BoardEnglish MediumSTD 9ScienceIs Matter Around Us Pure ?1 Mark
Question
The element which is not common between the compounds called baking soda and soda ash is:
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Answer
Washing soda $($soda ash$), \ce{Na2CO3}$ contains $Na, C$ and $O,$ whereas baking soda$, \ce{NaHCO3},$ is made up of $Na, C, H$ and $O.$ So, the element, which is not common in the two, is hydrogen.
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