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all those metals which are present below Hydrogen in the reactivity series like Ag , Cu , Au , Pt ,etc.
^^ He is incorrect.
All metals, one or another, will react with some acids to produce Hydrogen Gas.
-He mentioned Copper and Silver. Silver and Copper will react with Nitric Acid giving off Hydrogen and NitroDioxide Gas.
He mentioned Gold and Platinum. Gold and Platinum will react with Aqua Regia (A mixture of Hydrogen Chloride and Nitric Acid) giving off Nitric Oxide, Nitrogen Dioxide, and Hydrogen gas.
All metals will react with FluoroAntimonic Acid, Xenic Acid, or any other super acid to give off hydrogen gas and other gases as well.
What else can I help you with?
Why lead is not used for the preparation of hydrogen from dilute HCL or dilute sulphuric?
Lead is not reactive enough to displace hydrogen from dilute HCl or dilute sulfuric acid. The reduction potential of lead is lower than that of hydrogen, so it cannot effectively displace hydrogen in these reactions. Other metals like zinc or aluminum are used instead due to their higher reactivity and ability to displace hydrogen.
The gas evolved when metals react with dilute acids?
When metals react with dilute acids, hydrogen gas is evolved. This is because metals displace hydrogen from the acid, resulting in the formation of metal salts and hydrogen gas as a byproduct. The reaction can be represented as metal + acid → metal salt + hydrogen gas.
Which 2 metals can displace hydrogen from dilute nitric acid?
magnesium and manganese Mg(s) + 2 HNO3(aq) → Mg(NO3)2(aq) + H2(g)
What Gas produced when metals react with dilute hydrochloric acid?
When metals react with dilute hydrochloric acid, hydrogen gas is produced. This is because the metal atoms displace hydrogen atoms from the acid, forming metal chloride and releasing hydrogen gas as a byproduct.
Why Cu does not liberate H2 gas from dilH2So4?
Copper (Cu) is below hydrogen (H) in the activity series of metals, which means it is less reactive than hydrogen. As a result, when copper is placed in dilute sulfuric acid (H2SO4), it is unable to displace hydrogen from the acid to liberate H2 gas. Only metals above hydrogen in the activity series can displace hydrogen from acids to form hydrogen gas.
Why lead is not used for the preparation of hydrogen from dilute HCL or dilute sulphuric?
Lead is not reactive enough to displace hydrogen from dilute HCl or dilute sulfuric acid. The reduction potential of lead is lower than that of hydrogen, so it cannot effectively displace hydrogen in these reactions. Other metals like zinc or aluminum are used instead due to their higher reactivity and ability to displace hydrogen.
The gas evolved when metals react with dilute acids?
When metals react with dilute acids, hydrogen gas is evolved. This is because metals displace hydrogen from the acid, resulting in the formation of metal salts and hydrogen gas as a byproduct. The reaction can be represented as metal + acid → metal salt + hydrogen gas.
Which 2 metals can displace hydrogen from dilute nitric acid?
magnesium and manganese Mg(s) + 2 HNO3(aq) → Mg(NO3)2(aq) + H2(g)
What Gas produced when metals react with dilute hydrochloric acid?
When metals react with dilute hydrochloric acid, hydrogen gas is produced. This is because the metal atoms displace hydrogen atoms from the acid, forming metal chloride and releasing hydrogen gas as a byproduct.
Why Cu does not liberate H2 gas from dilH2So4?
Copper (Cu) is below hydrogen (H) in the activity series of metals, which means it is less reactive than hydrogen. As a result, when copper is placed in dilute sulfuric acid (H2SO4), it is unable to displace hydrogen from the acid to liberate H2 gas. Only metals above hydrogen in the activity series can displace hydrogen from acids to form hydrogen gas.
Why does zinc nitrate doesn't react with dilute HCl?
Zinc nitrate does not react with dilute hydrochloric acid (HCl) because zinc is a less reactive metal than hydrogen. In the reactivity series of metals, zinc is placed above hydrogen, which means it is less likely to displace hydrogen in a reaction. Therefore, no reaction occurs when zinc nitrate is combined with dilute HCl.
Why hydrogen is liberated when magnesium react with dilute nitric acid unlike other metals where hydrogen is not evolved?
Magnesium reacts with dilute nitric acid to form magnesium nitrate and liberate hydrogen gas because magnesium is a highly reactive metal and is able to displace hydrogen from nitric acid. Other less reactive metals do not typically react with dilute nitric acid to produce hydrogen gas.
Do non metals liberate hydrogen gas from dilute. acids?
No. Metals liberate hydrogen gas from acids.
Why most of the transition metal not displace hydrogen in acid?
Most transition metals do not displace hydrogen in acid because they are not reactive enough to displace hydrogen from acids. Transition metals tend to form stable compounds with acids instead of displacing the hydrogen. This is due to their high ionization energies and tendency to form complex ions.
What is the gas made when metals react with dilute acid?
Hydrogen
Do acids and metals react to make oxygen?
Acids can react with metals to produce hydrogen gas, not oxygen. When acids react with metals, they displace hydrogen gas from the acid.
Why hydrogen placed in activity chart of metals when it is not a metal?
Hydrogen may not be a metal, but it does share some properties with metals. It forms a positive cation, H+, and can displace some metals in displacement reactions. Basically, it is included in the reactivity series because it is able to displace some metals but not others.
