Which of the following is an example of chemical weathering?
Answer: D
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The pH of pure water is nearly 7.It will increase on the addition of
Answer: A
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The number of waves in n x 10th Bohr's orbit are
Answer: B
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The number of moles of solute present in 1 kg of a solvent is called its
Answer: A
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In addition to nitric acid, another acid which may render iron passive is
Answer: C
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Which nutrient is not available in fertilizers?
Answer: C
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The molecular formula of phosphorous is
Answer: D
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Which of these illustrates the Secondary Structure of a Protein?
Answer: B
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which of the following are chemical changes?
Answer: A
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What is the structure of IF7 ?
Answer: B
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