Advertisements
Advertisements
प्रश्न
Name the following:
A halogen which is a solid at room temperature.
Advertisements
उत्तर
Iodine
APPEARS IN
संबंधित प्रश्न
Mark ‘T’ if the statement is true and ‘F’ if it is false.
Generally, non-metals react with acids. ( )
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
State one use of Copper.
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
What is a thermite reaction? Explain with the help of an equation. State one use of this reaction.
Explain how, a reduction reaction of aluminium can be used for welding cracked machine parts of iron. Write a chemical equation for the reaction involved.
For the reduction of metal oxide, suggest a reducing agent other than carbon.
Mention two uses of the following metals and non-metals
Gold
Fill in the blank
_______ is a soft metal.
State two important uses of following metal
Uses of magnesium
State the position of the following in the periodic table:
Alkaline earth metals
Write name.
The nonmetal having electrical conductivity.
What is it made from? Why?
Electric cables
On heating which of the following substances i.e. copper carbonate, zinc carbonate, washing soda, copper sulphate, zinc nitrate, copper nitrate, lead nitrate, ammonium chloride and ammonium dichromate – relate to the reaction given below.
A white crystalline solid which decrepitates on heating leaving a residue which fuses with the glass and evolves two gases one of which is coloured and acidic.
What is ductility?
The most abundant element in the universe is ____________.
The ability of metals to be drawn into thin wire is known as
Which of the following metals are obtained by electrolysis of their chlorides in molten state?
- Na
- Ca
- Fe
- Cu
In the following figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.

- ______ is a metal.
- Metals are good ______ of electricity.
A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.
