Chemistry Questions

Q:

Which of the following processes will take place the slowest for the same quantity of liquid?

A) Boiling B) Condensation
C) Evaporation D) Freezing
 
Answer & Explanation Answer: C) Evaporation

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Q:

The chemical formula of Propane is

A) C3H8 B) C4H10
C) C2H6 D) CH4
 
Answer & Explanation Answer: A) C3H8

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Q:

Aluminium oxide is ___ in nature.

A) amphoteric B) acidic 
C) neutral D) basic
 
Answer & Explanation Answer: A) amphoteric

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Q:

The pH of a solution, whose hydrogen ion concentration is 1 x 10 mole per litre, will be ____.

A) 7 B) 5
C) 4 D) 6
 
Answer & Explanation Answer: B) 5

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Q:

Choose the one which is different or odd from the following.

A) Aluminium B) Iron
C) Copper D) Brass
 
Answer & Explanation Answer: D) Brass

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Q:

What is the chemical formula of Ozone?

A) O B) O2
C) O3 D) O4
 
Answer & Explanation Answer: C) O3

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Q:

According to an early Indian philosopher everything is made up of ___ basic elements.

A) 2 B) 4
C) 3 D) 5
 
Answer & Explanation Answer: D) 5

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Q:

Which type of Ethanol is made from sources like molasses, sugarcane, sugar beet, sorghum and edible oil seeds?

 

A) 2G ethanol B) 1G ethanol
C) Clean ethanol D) 3G ethanol
 
Answer & Explanation Answer: B) 1G ethanol

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