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प्रश्न
Which of the following metals does not give hydrogen with acids?
विकल्प
Iron
Copper
Lead
Zinc
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उत्तर
Copper
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संबंधित प्रश्न
A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.
What do you observe when a few drops of red litmus solution are added to the turbid solution.
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 reason for the following:
Potassium and sodium are not used for reaction with dilute hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
What do you observe when hydrogen gas is passed through a soap solution?
Select the odd one out and justify your answer.
Zn, Fe, Mg, and Na
Select the odd one out and justify your answer.
Fe, Zn, Cu and Mg
What do you observe when dilute sulphuric acid is added to Zinc granules.
Using dilute sulphuric acid how would you differentiate between:
Sodium sulphide and sodium carbonate.
How would you identify the gaseous products evolved.
State why hydrogen is not prepared in the laboratory by the action of lead with dilute hydrochloric acid.
Name the following.
The salt formed when aluminium reacts with potassium hydroxide, during the preparation of hydrogen from alkalis.
