Question
Acids do not react with metals except with Zn, Al and Sn.
Answer: Option B
:
B
The given statement is false. Most of the metals react with acids. The metals which are more reactive than hydrogen can replace the hydrogen ion from an acid. For example, sodium, potassium can replace hydrogen from acids. The equation for the reaction of sodium and potassium with dilute hydrochloric acid is given below.
2Na(s)+2HCl(aq)→2NaCl(aq)+H2(g)
2K(s)+2HCl(aq)→2KCl(aq)+H2(g)
The metals which are less reactive than hydrogen cannot replace it from acids. For eg. Gold, Platinum etc.
So the given statement is false.
Was this answer helpful ?
:
B
The given statement is false. Most of the metals react with acids. The metals which are more reactive than hydrogen can replace the hydrogen ion from an acid. For example, sodium, potassium can replace hydrogen from acids. The equation for the reaction of sodium and potassium with dilute hydrochloric acid is given below.
2Na(s)+2HCl(aq)→2NaCl(aq)+H2(g)
2K(s)+2HCl(aq)→2KCl(aq)+H2(g)
The metals which are less reactive than hydrogen cannot replace it from acids. For eg. Gold, Platinum etc.
So the given statement is false.
Was this answer helpful ?
More Questions on This Topic :
Question 2. Potash alum is an example of a:....
Question 3. Which of the following is correct about pH?....
Question 4. What are pH indicators? ....
Submit Solution