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 Chemistry Questions

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Q:

____ is the process in which acids and bases react to form salts and water.

A) Distillation B) Electrolysis
C) Neutralisation D) Hydrolysis
 
Answer & Explanation Answer: C) Neutralisation

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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:

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:

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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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:

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:

One should use porcelain and not metal containers in a microwave oven because..

A) Charge may accumulate on the metal surface and there is danger of getting a shock B) Porcelain vessels are better conductors of heat and thus food gets cooked quickly
C) Metal containers might undergo chemical reaction leading to spoilage of food D) Porcelain vessels are cheaper than the metal containers
 
Answer & Explanation Answer: A) Charge may accumulate on the metal surface and there is danger of getting a shock

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