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प्रश्न
The element which is not common between the compounds called baking soda and soda ash is
विकल्प
sodium
hydrogen
oxygen
carbon
उत्तर
hydrogen
Washing soda (soda ash), Na2CO3 contains Na, C and O, whereas baking soda, 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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