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 Chemistry Questions

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Q:

Which of these is not a macronutrient for Plants?

A) Nitrogen B) Phosphorus
C) Potassium D) Chlorine
 
Answer & Explanation Answer: D) Chlorine

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Q:

Atomic Number of Hydrogen is _______.

A) 4 B) 3
C) 2 D) 1
 
Answer & Explanation Answer: D) 1

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Q:

Which of the following is usually not an air­pollutant?

A) Hydrocarbons B) Sulphur dioxide
C) Carbon dioxide D) Nitrous oxide
 
Answer & Explanation Answer: D) Nitrous oxide

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Q:

Chemical composition of cement is

A) Limestone and Clay B) Limestone, Clay and Gypsum
C) Limestone and Gypsum D) Clay and Gypsum
 
Answer & Explanation Answer: B) Limestone, Clay and Gypsum

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Q:

Acid rain is caused due to pollution of atmosphere by

A)  oxides of nitrogen and sulphur B)  oxides of nitrogen and phosphorous
C) oxides of carbon and nitrogen D)  oxides of nitrogen and methane
 
Answer & Explanation Answer: C) oxides of carbon and nitrogen

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Q:

The reaction of Copper Sulphate and Iron produces Iron Sulphate and __________.

A) Vinegar B) Ash
C) Baking Soda D) Copper
 
Answer & Explanation Answer: D) Copper

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Q:

Which of the following statements is INCORRECT?

A) Solids have definite volume  B) solids are rigid 
C) Solids have indefinite shape  D) Solids are almost incompressible
 
Answer & Explanation Answer: C) Solids have indefinite shape 

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Q:

Which of the following are highly compressible?

A) Solid B) Liquid
C) Gas D) Solid and Liquid
 
Answer & Explanation Answer: C) Gas

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