Contents

Alkalis that ionize partially in water are called…….
a) weak alkalis                    

b)strong alkalis
c) concentrated alkalis      

d) dilute alkalis

a

Explanation:A weak base is a base that, upon dissolution in water, does not dissociate completely, so that the resulting aqueous solution contains only a small proportion of hydroxide ions and the concerned basic radical, and a large proportion of undissociated molecules of the base.



Which of the following is/are weak alkali/s?
a) Al(OH)3                                            

b) NH4OH
c) Cu(OH)2                           

d) all of these

d

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

b) KOH
c) Ca(OH)2                           

d) NH4OH

a

What is the common name of sodium hydroxide?
a)caustic soda     

b) milk of magnesia
c) caustic potash 

d) slaked lime

a

Explanation:Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na⁺ and hydroxide anions OH⁻.



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

b)NH4OH
c) Ca(OH)2                                         

d)KOH

d

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

b)caustic soda
c)caustic potash                 

d) slaked lime

c