Chemistry MCQS for Class 10
Which of one the following is Lewis base?
H+
NH3
BF3
Ag+
Which one of the following is Lewis base?
H+
NH3
BF3
AlCl3
Acids turn
Blue litmus blue
Red litmus blue
Blue litmus red
Blue litmus green
What is the POH of a 0.02 M Ca(OH)2?
1.698
12.61
12.31
1.397
Which acid is present in our stomach.
All of these
Sulphuric acid
Hydrochloric acid
Nitric acid
What is pOH of 0.01 M solution of KOH?
3
4
2
11
Arrhenius put forward acid base concept in.
1786
1878
1790
1787
When Bronsted and Lowry put forward acid base concept?
1933
1923
1913
1943
Who proved that the presence of hydrogen as the main constituent of all acids.
Humphrey Davy
Dalton
Arrhenius
Lavoisier
All water soluble metallic oxides have characteristic of:
neutral
basic
amphoteric
acidic
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