Chemistry Questions

Q:

Atomic bomb is based on which of the following principle?

A) Nuclear fusion B) Nuclear fission
C) Natural radioactivity D) All options are correct
 
Answer & Explanation Answer: B) Nuclear fission

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Q:

Which of the following is an ore of Aluminium?

A) Galena B) Cryollite
C) Cinnabar D) Epsom Salt
 
Answer & Explanation Answer: B) Cryollite

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Q:

Which of the following elements has the lowest melting point?

A) Oxygen B) Platinum
C) Sodium D) Tin
 
Answer & Explanation Answer: A) Oxygen

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Q:

The Chemical formula of Ammonium sulphate is

A) NH4SO4 B) (NH4)2SO3
C) NH4SO3 D) (NH4)2SO4
 
Answer & Explanation Answer: D) (NH4)2SO4

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Q:

Which of the following gas was released during Bhopal gas tragedy?

A) Methyl isocyanate B) Sodium isothiocyanate
C) Nitrogen isothiocyanate D) Potassium isothiocyanate
 
Answer & Explanation Answer: A) Methyl isocyanate

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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:

Which of the following induces souring of milk?

A) Acetic Acid B) Citric Acid
C) Ascorbic Acid D) Lactic Acid
 
Answer & Explanation Answer: D) Lactic Acid

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Q:

A change in which a substance undergoes a change in its physical properties is called _____________.

A) Chemical Properties B) Physical Properties
C) Chemical Change D) Physical Change
 
Answer & Explanation Answer: D) Physical Change

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