MCQEasy1 mark
Select the correct option for each of the following questions.
The percentage of hydrogen present in NaOH is: (Relative Molecular Mass of NaOH = 40) (At. Wt. of H = 1)
Topic: Mole concept, gas volumes and stoichiometry
Previous-year question practice database
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Pick an option and check your answer. The full worked answer is below either way.
Answer
Exam answer
(a) 2.5%.
Explanation
%H = 1/40 × 100.
In words
2.5%.
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