MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

'Freon' used as refrigerants is chemically known as_____.

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Important Questions on Chemistry

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 51
Soaps cannot be used in acidic condition because they lose their cleansing effect due to formation of insoluble
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 52
Which chemical was an important symbol in our struggle for freedom?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 53
Which one of the following substances is most likely to be used as soap?
EASY
UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 54
Arsphenamine drugs is mainly used in the treatment of?
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 55
Gun cotton is used as a propellant or low-order explosive. Chemically, the gun cotton is
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UPSC CAPF AC Paper - I
IMPORTANT
14000+ Objective Questions General Studies>Chapter 10 - Chemistry>Exercise 15>Q 56
Consider the following statements
1. Photochromic lenses are lenses that darken on exposure to ultraviolet light.
2. Photochromic properties is due to embedded microcrystalline of silver chloride in the glass.
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 15>Q 57
Consider the following statements
1. Pyrex glasses have boron oxide as main constituent besides silica.
2. Pyrex glasses have high thermal expansion, thus less vulnerable to cracking from thermal shock.
3. They are commonly used for reagent bottles, optical component and household cookware.
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 15>Q 58
Many communities put salt on their roads after a snow fall, why?