Advertisements
Advertisements
Question
Correct the following statement:
Conc. H2SO4 reacts with zinc to liberate hydrogen.
Solution
Dil. H2SO4 reacts with zinc to liberate hydrogen.
APPEARS IN
RELATED QUESTIONS
From the knowledge of activity series, name a metal which shows the following properties:
It displaces hydrogen from dilute HCl.
Hydrogen can be prepared with the metal zinc by using:
acid
Give an equation.
Hydrogen can be prepared with the metal zinc by using: alkali
Give an equation.
Thin strips of magnesium, copper, and iron are taken.
Arrange these metals in descending order of reactivity.
Which metal is preferred for collecting hydrogen from:
Write the balanced equation
Hot water
Hydrogen is obtained by displacement from:
- dilute sulphuric acid
- dilute hydrochloric acid
Write equations using zinc and iron.
Why does copper not show similar behavior?
Give a reason for the following.
Hydrogen is collected by the downward displacement of water and not of air, even though it is lighter than air.
Select the odd one out and justify your answer.
Fe, Pb, Al and Zn
Which of the following metals does not give hydrogen with acids?
Give a chemical test to distinguish between the following gases:
Hydrogen chloride and hydrogen sulphide