Chemistry
Which of the following metals does not give hydrogen with acids?
- Iron
- Copper
- Magnesium
- Zinc
Related Questions
For the reaction PbO + H2 ⟶ Pb + H2O, which of the following statements is wrong?
- H2 is the reducing agent.
- PbO is the oxidizing agent.
- PbO is oxidized to Pb
- H2 is oxidized to H2O.
Which metal gives hydrogen with all of the following: water, acids, alkalis?
- Fe
- Zn
- Mg
- Pb
Which of the following statements about the reaction given below are correct?
3Fe (s) + 4H2O (g) ⟶ Fe3O4 (s) + 4H2 (g)
P — Iron is getting oxidised.
Q — Water is getting reduced.
R — Water is a reducing agent.
S — Water is an oxidising agent.
- P, Q and R
- R and S
- P, Q and S
- Q and S
Which of the following statements about the reaction given below are incorrect?
ZnO (s) + C (s) ⟶ Zn (s) + CO
P — Zinc is getting reduced.
Q — Carbon is getting oxidised.
R — Carbon monoxide is getting oxidised.
S — Zinc oxide is getting reduced.
- P and Q
- P and R
- P, Q and R
- All are incorrect