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 Chemistry Questions

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Q:

___ is used in yellow lamp street lights.

A) Neon B) Nitrogen
C) Phosphorous D) Sodium
 
Answer & Explanation Answer: D) Sodium

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Q:

___ is used as a stabilizer in ice cream.

A) Gelatin B) Sugar
C) Milk D) Strawberry
 
Answer & Explanation Answer: A) Gelatin

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Q:

Which of the following gases makes bread or cake rise making them soft and spongy?

A) CO B) CO2
C) H2 D) O2
 
Answer & Explanation Answer: B) CO2

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Q:

The number of electrons that can be accommodated in the M shell is

A) 18 B) 8
C) 2 D) 32
 
Answer & Explanation Answer: A) 18

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Q:

Least distance of distinct vision for normal eye is

A) 15 cm B) 20 cm
C) 25 cm D) 30 cm
 
Answer & Explanation Answer: C) 25 cm

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Q:

Which of the following metals does NOT react with Oxygen even at a high temperature?

A) Silver B) Lead
C) Aluminium D) Zinc
 
Answer & Explanation Answer: A) Silver

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Q:

Which of the following classifications is based on atomic numbers?

A) Mendeleev's Periodic Table B) Modern Periodic Table
C) Newlands Law of Octaves D) Dobereiner's Law of Triads
 
Answer & Explanation Answer: B) Modern Periodic Table

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Q:

In the Modern Periodic Table, a zig-zag line separates

A) metals from halogens B) non-metals from metalloids
C) metals from non-metals D) metals from metalloids
 
Answer & Explanation Answer: C) metals from non-metals

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