Multiple choice general knowledge science & technology

Chemical formula for water is

  1. NaA1O2

  2. H2O

  3. Al2O3

  4. CaSiO3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Water's chemical formula is H2O, meaning two hydrogen atoms bonded to one oxygen atom. NaAlO2 is sodium aluminate, Al2O3 is aluminum oxide, and CaSiO3 is calcium silicate - none of these represent water.

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