In universal indicators, what does a pH value of 4 to 5 indicate?
A. weak acid
B. weak base
C. strong acid
D. strong alkali
Answer: Option A
A. weak acid
B. weak base
C. strong acid
D. strong alkali
Answer: Option A
Which one of the following is an organic acid?
A. Hydrochloric acid
B. Nitric acid
C. Acetic acid
D. Sulphuric acid
Vinegar used in cooking contains which of the following compounds?
A. Methanol
B. Sodium sulphate
C. Ammonia
D. Acetic acid
Muriatic acid is scientifically known as:
A. Perchloric Acid
B. Hydrochloric Acid
C. Sulphuric Acid
D. Picric Acid
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