MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

Assertion (A) Phosgene is a poisonous compound forms from chloroform in the presence of UV-rays and O2 .
Reason (R)(R) It is used for the synthesis of precursor for the poly urethane polymer.

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Important Questions on Chemistry

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 75
Activated charcoal is employed to remove the colouring matter from pure substance, it works by
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 76

Consider the following statements:
1. Dry ice is the solid form of CO2 .
2. Dry ice is used primarily as a cooling agent.
3. Water ice is colder than dry ice.

Which of the statement(s) given above is/are correct?

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 77
Study the following statements
1. Bromine is a reactive non-metal.
2. Hydrochloric acid is also called as maratic acid.
3. Chlorine is used in the production of phosgine, mustard gas etc.
Which of the statements above are correct?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 78
Which one of the following is produced during the formation of photochemical smog?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 79
Consider the following statements.
1. Chlorine is manufactured by Deacon's process.
2. Bromine is obtained on a commercial scale from carnallite.
3. Chlorine acts as bleaching agent only in the presence of moisture.
Which of the above are false?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 80
Match List I  with List-II.
The list I                        List II
A. Teargas             1.  C 1 0 H 5 C l N 2
B. Litharge             2. PbO
C. Red lead           3. Pb3O4
D. Carborundum   4. SiC
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 81
Which one is known as oil of vitriol?
MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 11>Q 82
The element which liberated O2 from water is: