Advertisements
Advertisements
प्रश्न
Which one of the following four metals would be displaced from the solution of its salt by the other three metals?
पर्याय
Zn
Ag
Cu
Mg
Advertisements
उत्तर
Ag
Explanation:
In a displacement reaction, a more reactive metal displaces a less reactive metal from its salt solution. According to the reactivity series, the order of reactivity for these four metals is Mg > Zn > Cu > Ag. Since silver (Ag) is the least reactive metal among them, it lacks the power to displace any of the others and will easily be displaced from its salt solution by magnesium, zinc, and copper.
APPEARS IN
संबंधित प्रश्न
Write the electron-dot structures for sodium, oxygen and magnesium.
Show the formation of Na2O by the transfer of electrons.
Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron).
Name two metals which form amphoteric oxides.
Name the metal which has been placed at the bottom of the reactivity series.
Complete and balance the following equation:
\[\ce{Cu(NO3)2_{(aq)} + Zn_{(s)} ->}\]
What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.
How do metals react with hydrogen? Explain with an example.
What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.
What is meant by the reactivity series of metals?
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
A metal less reactive and another metal more reactive than hydrogen are ______.
An element E forms an oxide E2O. An aqueous solution of E2O turns red litmus paper blue.
- What is the nature of the oxide E2O?
- State whether element E is a metal or a non-metal.
- Give one example of an element like E.
An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
- What is the nature of oxide XO?
- What is the nature of oxide ХО2?
- Would you call element X a metal or a non-metal? Give reason for your choice.
- Can you give an example of element like X?
What is the cause of chemical bonding (or chemical combination) of atoms of elements?
Choose the correct alternative and rewrite the following:
Which of the following is lue in colour?
Write the chemical equation for the following reaction:
Manganese dioxide is heated with aluminum powder.
Metals are generally hard. Which of the following metals is an exception and can be cut with a knife?
Which of the following property is not responsible for copper to be used as electrical conduction wires?
Why is acidified water considered to be a good conductor of electricity?
