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Reaction between an acid and a base to show the process of neutralization
Reaction between an acid and a base to show the process of neutralization
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1)
What will be the salt of the given reaction? Zn (OH)2 + HNO3 →
No reactions
Zn(OH)2
Zn (NO3)2
H2O
HNO3
2)
Complete the following reaction: HCl + Mg (OH)2 →
MgCl2 + CO2+ H2O
MgCl2+ CO2
MgCl2+ H2O
MgCl2 + O2
3)
What is the pH range of acidic solutions?
0-7
0-2
5-7
7-14
4)
A neutral solution contains
Electrons and protons
Salts of metals
No free ions
Equal number of H + and OH – ions
5)
Neutralization reactions are
Combination reactions
Decomposition reactions
Double displacement reactions
Displacement reactions
6)
Products of a neutralisation reaction are always
a salt and a base
an acid and a salt
an acid and a base
salt and water
7)
The colours of phenolphthalein, a synthetic indicator, in basic and acidic solutions are
red and blue
blue and red
pink and colourless
colourless and pink
8)
Making an acid and water solution correctly involves:
mix acid and water simultaneously
add water to acid in a shallow container
add acid to water
add water to acid
9)
A natural indicator is turmeric. Which colours would be seen when its paste was added to the acid and base separately?
Yellow in both acid and base
Yellow in acid and red in base
Red in acid and blue in base
Pink in acid and yellow in base
10)
Plants do not grow well in soil that is too basic. What must be added to the soil in order to improve its quality?
Quick lime
Slaked lime
Organic matter
Calamine solution