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Q:

How many elements are present in the group of the 18th Modem Periodic Table?

A) 5 B) 2
C) 6 D) 7
 
Answer & Explanation Answer: D) 7

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Q:

What is the name of the acid in grapes?

A) Lactic acid B) Formic acid
C) Acetic acid D) Tartaric acid
 
Answer & Explanation Answer: D) Tartaric acid

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Q:

NaHCO3 is chemical formula for ___________.

A) Borax B) Vinegar
C) Lime D) Baking soda
 
Answer & Explanation Answer: D) Baking soda

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Q:

Nylon threads are made of

A) Polyester polymer B) Polyamide polymer
C) Polyvinyl polymer D) Polysaccharide
 
Answer & Explanation Answer: B) Polyamide polymer

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Q:

Which among the following is an endothermic reaction?

A) Respiration B) Combustion
C) Sweating D) Burning of natural gas
 
Answer & Explanation Answer: C) Sweating

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Q:

Most liquids that conduct electricity are solutions of acids, bases and ______.

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

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Q:

Which of the following is not an example of Allotrope?

A) Diamond B) Graphite
C) Ozone D) Steel
 
Answer & Explanation Answer: D) Steel

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Q:

The absolute zero is a temperature at which _______

A) molecular motion in a gas would cease B) water freezes
C) all gases become liquid D) all gases become solid
 
Answer & Explanation Answer: A) molecular motion in a gas would cease

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