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NTSE Stage 2 SAT 2018 Exam Question Paper

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Question : 17

Total: 100

A test tube along with calcium carbonate in it initially weighed 30.08 g. A heating experiment was performed on this test tube till calcium carbonate completely decomposed with evolution of a gas. Loss of weight during this experiment was 4.40 g. What is the weight of the empty test tube in this experiment?

20.08 g
21.00 g
24.50 g
2.008 g

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