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Which one among the following is called philosopher’s wool?

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Important Questions on Chemistry

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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 64
Which one of the following is another name of RDX?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 65
What is the pH level of blood of a normal person?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 66
What are rubies and sapphires chemically known as?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 67
Which one of the following is also called stranger gas?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 68
Mixture of which one of the following pairs of gases is the cause of occurrence of most of the explosions in mines?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 69
Which one of the following pairs of metals constitutes the lightest metal and the heaviest metal, respectively?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 70
Who among the following discovered heavy water?
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IAS (PRE) General Studies Paper 1>Chapter 12 - Chemistry>Exercise 1>Q 71
What is Bisphenol A (BPA)?