Chemistry Questions

Q:

Which of the following is NOT a primary green house gas in the earth's atmosphere?

A) Methane B) Ozone
C) Nitrous oxide D) Hydrogen
 
Answer & Explanation Answer: D) Hydrogen

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Q:

The property of metals by which they can be beaten into thin sheets is called _______________.

A) ductility B) malleability
C) viscosity D) tensile strength
 
Answer & Explanation Answer: B) malleability

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Q:

The Chemical formula of Ammonium dichromate is _____.

A) (NHF4)2Cr2O7 B) (NH4)CrO3
C) (NH4)Cr2O3 D) (NH4)2Cr2O3
 
Answer & Explanation Answer: A) (NHF4)2Cr2O7

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Q:

In hydrolysis reactions compounds react with

A) carbon, causing decomposition B) glucose, causing decomposition
C) water, causing decomposition D) hydrogen, causing decomposition
 
Answer & Explanation Answer: C) water, causing decomposition

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Q:

Besides CO2, the other green house gas is

A) CH4 B) N2
C) Ar D) O2
 
Answer & Explanation Answer: A) CH4

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Q:

Release of which among the following is the primary reason for depletion of the ozone layer?

A) Nitrous oxide B) Hydrogen dioxide
C) Chlorofluro carbon D) Carbon monoxide
 
Answer & Explanation Answer: C) Chlorofluro carbon

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Q:

What is used to prevent freezing of fuel in space crafts?

A) Benzene B) Glycol
C) Acetylene D) Ester
 
Answer & Explanation Answer: B) Glycol

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Q:

Metals reacts with acids to give:

A) a salt and chlorine B) a salt and hydrogen
C) a salt and water D) a salt and base
 
Answer & Explanation Answer: B) a salt and hydrogen

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