General Science Class-8 (MCQs=1674)

What is the chemical formula of calcium hydroxide?
a)NaOH                                

b) KOH
c)Ca(OH)2                            

d) NH4OH

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What is the common name of calcium hydroxide?
a)milk of magnesia                            

b)caustic soda
c) caustic potash                 

d)slaked lime

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What is the chemical formula of magnesium hydroxide?
a)NaOH                                

b) KOH
c)Mg(OH)2                           

d) NH4OH

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What is the common name of magnesium hydroxide?
a)milk of magnesia           

b) caustic soda
c) caustic potash                 

d) slaked lime

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What is the chemical formula of ammonium hydroxide?
a)NaOH                                

b) KOH
c) Ca(OH)₂                           

d)NH₄OH

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What is the common name of ammonium hydroxide?
a) aqueous ammonia        

b)ammonia water               
c) aqua ammonia                               

d)all of these

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