Q: 16 (RAS/2011)
question_subject:
Science
question_exam:
RAS
stats:
0,43,10,7,2,43,1
keywords:
{'calcium carbonate': [0, 0, 1, 4], 'calcium oxalate': [0, 1, 0, 0], 'calcium sulphate': [0, 1, 1, 7], 'calcium oxide': [0, 0, 0, 1], 'pearl': [0, 0, 0, 1]}