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 Chemistry Questions

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Q:

Metals are generally ______.

I. Ductile

II. Malleable

III. Poor conductors of heat

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: A) Only I and II

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Q:

Which species is a conjugate acid of OH- ?

 

A) H+ B) O2- 
C) OH D) H2O
 
Answer & Explanation Answer: D) H2O

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Q:

Which one of the following is commonly used as an indicator to measure the exact pH?

 

A) Eosin B) Phenolphthalein
C) Universal indicator D) Litmus
 
Answer & Explanation Answer: C) Universal indicator

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Q:

Which of the following statements is Incorrect?

 

A) The particles of matter have spaces between them B) The particles of matter are extremely small
C) The particles of matter attract each other D) The particles of matter are in stationary state
 
Answer & Explanation Answer: D) The particles of matter are in stationary state

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Q:

The most reactive of the following metals is

 

A) Al B) Ca
C) Ni D) Pb
 
Answer & Explanation Answer: B) Ca

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Q:

Which one of the following mixture is homogeneous?

 

A) Water and oil B) Starch and sugar crystals
C) Graphite and charcoal D) Alloys
 
Answer & Explanation Answer: D) Alloys

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Q:

Which is not a green house gas in the following?

 

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

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Q:

Which category of Hydrogen releases water vapour and a by product when burnt?

 

A) Green Hydrogen B) Blue Hydrogen
C) Red Hydrogen D) Black Hydrogen
 
Answer & Explanation Answer: A) Green Hydrogen

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