PS 9 : Question Preview (ID: 5653)


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.00001 M solution of HCl has a pH of
a) 2
b) 4
c) 3
d) 5

which acid base reaction will yield a neutrtal solution
a) strong acid / weak base
b) weak acid / strong base
c) strong acid / strong base
d) all of the answers are correct

soaps and detergents are
a) molelcular compounds
b) non polar compounds
c) ionic compounds
d) covalent compounds

the anion in a soap contains
a) water molecule
b) sodium or potassium ion
c) sulfoate group
d) carboxylate group

which part of soap dissolves in water?
a) negatively charged end of hydrocarbon chain
b) sodium or potassium ion
c) cation
d) all of the answers are correct

which is not true of bleach
a) kills bacteria
b) disinfects
c) removes substance causing stain
d) changes colored substances to colorless

bleach should never be mixed with
a) acid
b) detergent
c) water
d) soap

which statement is not true about antacids
a) antacids are basic substances
b) they neutralize stomach acid
c) they repair bone and cartilage
d) can change pH

when is a detergent more useful for cleaning than soap
a) removing grease
b) cleaning in hard water
c) emulsifying oil droplets
d) none of the answers are correct

which statement about bases is incorrect
a) they turn litmus paper blue
b) they contain hydronium ions
c) they taste bitter
d) none of the answers are correct

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