Two reactants in a flask produce bubbles of gas; it turns lime water into milky. The reactants in the flask are

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Q: 85 (NDA-II/2013)
Two reactants in a flask produce bubbles of gas; it turns lime water into milky. The reactants in the flask are
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question_subject: 

Science

question_exam: 

NDA-II

stats: 

0,32,11,7,32,2,2

keywords: 

{'bubbles': [0, 0, 0, 2], 'reactants': [0, 0, 0, 3], 'lime water': [0, 0, 0, 4], 'flask': [0, 0, 0, 2], 'zinc': [1, 0, 0, 2], 'gas': [9, 1, 9, 27], 'magnesium sulphate': [0, 0, 1, 1], 'hydrochloric acid': [1, 0, 3, 0], 'magnesium': [1, 0, 2, 3], 'milky': [0, 0, 0, 2]}