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UPSC CAPF AC Paper - I
IMPORTANT
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Flux is used to remove

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Important Questions on Chemistry

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 63
Black tin is
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 64
Lead pencil contains
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 65

Which ore contains both iron and copper?

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 66
In electro-refining of copper, some gold is deposited as
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 67
The hardest naturally occurring substance is
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 68
By annealing, steel
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 69

Match List I with List II.
     List I                     List II

A. Blue vitriol        1. Sodium bicarbonate

B. Epsom salt       2. Sodium hydroxide

C. Baking soda     3. Magnesium sulphate

D. Caustic soda    4. Copper sulphate

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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 10>Q 70

Consider the following statements

1. Pig iron is obtained from the bottom of blast furnace in the metallurgy of iron.

2. Pig iron contains approximately 4.3% carbon.

Which of the statements given above is/are correct?