Q: 92 (NDA-II/2016)
question_subject:
Science
question_exam:
NDA-II
stats:
0,38,47,18,27,38,2
keywords:
{'hydrogen atom': [0, 0, 0, 4], 'many moles': [0, 0, 0, 1], 'aluminium': [1, 0, 3, 2], 'mole': [1, 1, 1, 4], 'moles': [0, 0, 0, 3]}
The correct answer is option 3: Three moles.
To understand this, let`s first break down the formula of Aluminium hydroxide (Al(OH)3).
In one mole of Aluminium hydroxide, we have one mole of Aluminium (Al), and three moles of hydroxide (OH).
The hydroxide group (OH) consists of one oxygen atom (O) and one hydrogen atom (H).
So, in one mole of Aluminium hydroxide, we have 3 moles of hydrogen atoms.
Therefore, option 3: Three moles, is the correct answer.