Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
- Iron is a metal.
- Metals are good conductors of electricity.
APPEARS IN
संबंधित प्रश्न
Aluminium is not used to make :
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
Write name.
The device used for grinding an ore.
Write scientific reason.
Anodes need to be replaced from time to time during the electrolysis of alumina.
The electronic configuration of metal ‘A’ is 2,8,1 and that of metal ‘B’ is 2,8,2. Which of the two metals is more reactive? Write their reaction with dilute hydrochloric acid.
What was Mendeleev's basis for the classification of elements?
Name the following:
A metal used in packaging.
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.
Compare the properties of metals and nonmetals. Give three examples for each.
Metals are ______ conductors of heat and electricity.
