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प्रश्न
Which of the following is a tribasic acid?
विकल्प
H2SO4
Al(OH)3
H3PO4
Ca(OH)2
MCQ
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उत्तर
H3PO4
Explanation:
Phosphoric acid (H3PO4) has three replaceable hydrogen atoms per molecule. H2SO4 is dibasic acid and Al(OH)3 and Ca(OH)2 are bases, not acids.
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