18
Q:

The Kinetic energy of gas molecules

A) is unaffected by temperature variations B) decreases with increase of temperature
C) increases with decrease of temperature D) increases with increase of temperature

Answer:   D) increases with increase of temperature



Explanation:

Kinetic Energy K.E = 12mV2  or 

K.E V2, Where 'm' is the mass and 'v' is the velocity of molecules.

 

Velocity is proportional to temperature. Hence, KE is proportional to temperature and would increase with temperature.

Subject: Chemistry
Exam Prep: AIEEE
Q:

The elements belonging to groups ............ are known as 'd' block elements.

 

A) 3 to 12 B) 1 and 2
C) 13 to 18 D) 3 to 10
 
Answer & Explanation Answer: A) 3 to 12

Explanation:
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0 379
Q:

220 g of carbon dioxide contains .......... moles.

 

A) 5 B) 6
C) 3 D) 4
 
Answer & Explanation Answer: A) 5

Explanation:
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0 530
Q:

A solution contains 42 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution?

 

A) 11.6 g B) 12.6%
C) 11.6% D) 10.36%
 
Answer & Explanation Answer: C) 11.6%

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1 220
Q:

............ is a purple-coloured solid halogen.

 

A) Bromine B) Fluorine
C) Chlorine D) Iodine
 
Answer & Explanation Answer: D) Iodine

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0 153
Q:

The chemical formula of Ammonium phosphate is ............

 

A) (NH4)3PO4 B) (NH4)2PO4
C) (NH4)2P02 D) NH4PO4
 
Answer & Explanation Answer: A) (NH4)3PO4

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0 398
Q:

Which among the following has its refractive index closest to that of crown glass?

 

A) Diamond   B) Ruby  
C) Sapphire   D) Canada balsam  
 
Answer & Explanation Answer: D) Canada balsam  

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1 129
Q:

Which among the following is a cation?

 

A) Ammonium   B) Iodide  
C) Chloride   D)
 
Answer & Explanation Answer: A) Ammonium  

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1 152
Q:

Which of the following can be used as a catalyst in Hydrogenation reaction?

 

A) Barium B) Iron
C) Tungsten D) Palladium
 
Answer & Explanation Answer: D) Palladium

Explanation:
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