Advertisements
Advertisements
Question
Name the metal which has been placed just below copper in the reactivity series.
Advertisements
Solution
Mercury (Hg)
APPEARS IN
RELATED QUESTIONS
What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.
You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Explain why these sour substances are effective in cleaning the vessels.
Name the metal which has been placed at the bottom of the reactivity series.
Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.
Complete and balance the following equation:
\[\ce{Fe_{(s)} + H2O_{(g)} ->[Red heat]}\]
Complete and balance the following equation:
\[\ce{Cu(NO3)2_{(aq)} + Zn_{(s)} ->}\]
With the help of examples, describe how metal oxides differ from non-metal oxides.
What type of oxides are formed when non-metals react with oxygen? Explain with an example.
What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place
Can we keep sodium immersed under water? Why?
Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3solution?
(a) Magnesium
(b) Zinc
(c) Gold
(d) Copper
The elements whose oxides can turn litmus solution blue are:
(a) carbon and sulphur
(b) sodium and carbon
(c) potassium and magnesium
(d) magnesium and sulphur
The elements whose oxides can turn litmus solution red are:
(a) lithium and sodium
(b) copper and potassium
(c) carbon and hydrogen
(d) phosphorus and sulphur
An element is soft and can be cut with a knife. If is very reactive and cannot be kept open in the air. It reacts vigorously with water. The element is most likely to be:
(a) Mg
(b) S
(c) P
(d) Na
Explain the following:
Reactivity of aluminium decrease if it is dipped in nitric acid.
Where does the metal aluminium, used in the thermit process, occurs in the reactivity series of metals?
A cable manufacturing unit tested few elements on the basisof their physical properties.
| Properties | W | X | Y | Z |
| Malleable | Yes | No | No | Yes |
| Ductile | Yes | No | No | Yes |
| Electrical conductivity | Yes | Yes | Yes | No |
| Melting Point | High | Low | Low | High |
Which of the above elements were dicarded for usage by the company?
Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?
