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 Chemistry Questions

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Q:

Which one of the following is not a borderline element?

A) Boron B) Silicon
C) Polonium D) Bismuth
 
Answer & Explanation Answer: D) Bismuth

Explanation:
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Q:

Propyne and propene can be distinguished by

A) AgNO₃ in ammonia B) conc. H₂SO₄
C) dil. KMnO₄ D) Br₂ in CCl₄
 
Answer & Explanation Answer: A) AgNO₃ in ammonia

Explanation:

Propene, being an alkene, and propyne, being a alkyne, are distinguished using the common chemical tests namely ammoniacal silver nitrate or ammoniacal cuprous chloride. Ammoniacal silver nitrate is also called as Tollen's reagent.

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Q:

The percentage of carbon in CO2 is

A) 12 B) 44
C) 14 D) 27.3
 
Answer & Explanation Answer: D) 27.3

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Q:

Metals are placed on which side of the Modern Periodic table?

A) Top row B) Left side
C) Right side D) Bottom row
 
Answer & Explanation Answer: B) Left side

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Q:

The chemical weathering of feldspar produces

A) illite B) kaolinite
C) both 1 & 2 D) none
 
Answer & Explanation Answer: C) both 1 & 2

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Q:

The process of reducing the milk fat globules size to allow them to stay evenly distributed in milk is called ____.

A) Standardization B) Pasteurization
C) Homogenization D) Fortification
 
Answer & Explanation Answer: C) Homogenization

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Q:

Which of the following metals is the most Malleable?

A) Al B) Zn
C) Na D) Ag
 
Answer & Explanation Answer: C) Na

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Q:

Two or more elements combine to form a

A) atom B) valency
C) compound D) radical
 
Answer & Explanation Answer: C) compound

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