Advertisements
Advertisements
Question
You are supplied with five solutions: A, B, C, D and E with pH values as follows: A = 1.8, B = 7, C = 8.5, D = 13, and E = 5
Classify these solutions as neutral, slightly or strongly acidic and slightly or strongly alkaline.
Which solution would be most likely to liberate hydrogen with powdered zinc metal. Give a word equation for each reaction.
Advertisements
Solution
A = Strongly acidic
B = neutral
C = Slightly alkaline
D = Strongly alkaline
E = Slightly acidic
Solution (A) would liberate hydrogen with powdered zinc metal.
\[\ce{Zinc + Acid -> Salt of zinc + Hydrogen}\]
RELATED QUESTIONS
Name one natural source of the following acids:
Oxalic acid
Why do HCl, H2SO4, HNO3, etc., show acid character in aqueous solutions while solutions of compounds like C6H12O6 (glucose) and C2H5OH (alcohol) do not show acidic character?
When a piece of limestone reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then a white precipitate Y is formed. On passing excess of gas X, the white precipitate dissolves forming a soluble compound Z.
- What are X, Y and Z?
- Write equations for the reactions which take place:
- When limestone reacts with dilute HCl.
- When gas X reacts with lime water to form white precipitate Y.
- When excess of gas X dissolves white precipitate Y to form a soluble compound Z.
Write the chemical formula of ammonium chloride. Explain why an aqueous solution of ammonium chloride is acidic in nature? Illustrate your answer with the help of a chemical equation.
Write balanced equation to satisfy the following statement:
\[\ce{Acid + Base -> Salt + water}\]
Sulphuric acid has the highest importance in the chemical industry. Why?
Give the name and formula of two : Weak dibasic acids
An acid is ______.
Hydrochloric Acid reacts with metal bicarbonates to give ______.
Complete the following equation.
HCl + H2O → ______ + ______.
