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प्रश्न
Name the following:
The chemical compound responsible for the green deposit on the surface of articles of copper.
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उत्तर
Copper carbonate (CuCO3)
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संबंधित प्रश्न
State one use of Iron.
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
How does the electrical conductivity of copper alloys, brass and bronze, differ from that of pure copper?
How are the properties of an alloy different from those of the constitutent elements?
A metal with melting point less than 50°C is
Statements given below are incorrect. Write the correct statements :
Zinc is used for making power transmission wires.
Name a metal which is not malleable :
State two important uses of following metals:
Uses of iron
State two important uses of following metal
Uses of magnesium
Why is hydrogen placed with alkali metals?
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Oxygen
Molecular formula of the chloride of an element X is XCl. This compound is a solid having high melting point. Write name of any element present in the same group as X
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
Name the following:
A halogen which is a solid at room temperature.
Which of the following property is generally not shown by metals?
Which one of the following metals do not react with cold as well as hot water?
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
- Na
- Ca
- Fe
- Cu
An element forms an oxide A2O3 which is acidic in nature. Identify A as a metal or non-metal.
The metal can be cut with a knife ______.
The typical shine of metals is called ______.
