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NEET levelSingle correct optionDifficulty 1 of 3bn088

Which is the formula of sodium hydrogencarbonate?

A $NaHCO X_{3}$
B $Na X_{2} CO X_{3}$
C $NaHCO X_{2}$
D $Na (HCO X_{3}) X_{2}$

Answer: A

Hydrogencarbonate is

HCO X_{3} X^{-}

(one negative charge), so one

Na X^{+}

is enough:

NaHCO X_{3}

.

Na X_{2} CO X_{3}

is sodium carbonate.

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