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Q:

Which of the following is NOT a noble gas?

A) Radon B) Krypton
C) Xenon D) Hydrogen
 
Answer & Explanation Answer: D) Hydrogen

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Q:

___ is used to control the fission reaction rate in a nuclear reactor as it absorbs neutrons without itself getting into fissioning.

 

A) Heavy water B) Graphite
C) Water D) Calcium
 
Answer & Explanation Answer: D) Calcium

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Q:

An alloy is an example of

A) Colloidal solution B) Emulsion
C) Solid solution D) Heterogenous mixture
 
Answer & Explanation Answer: C) Solid solution

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Q:

The major ingredient of sweetened soft drink is

A) Carbonated water B) Hydrochloric acid
C) Phosphoric acid D) Caffeine
 
Answer & Explanation Answer: A) Carbonated water

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Q:

The maximum number of electrons that can be accommodated in a shell is indicated by the formula

A) 2n-2 B) 2n3
C) 2n D) 2n2
 
Answer & Explanation Answer: D) 2n2

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Q:

What is C12H22O11 also known as

A) Sand B) Sugar
C) Salt D) Clay
 
Answer & Explanation Answer: B) Sugar

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Q:

Which of the following is false?

A) Hydrogen atom is roughly a third of the mass of tritium B) Deuterium is called heavy hydrogen
C) Deuterium atom has 1 neutron D) Protium is the rarest isotope of hydrogen
 
Answer & Explanation Answer: D) Protium is the rarest isotope of hydrogen

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Q:

Which is the first metallic element in the Modern Periodic Table?

A) Li B) Na
C) He D) H2
 
Answer & Explanation Answer: A) Li

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