Advertisements
Advertisements
प्रश्न
With reference to the following metal state its use in daily life:
Magnesium
Advertisements
उत्तर
- It is used in fireworks as it burns with a dazzling light.
- Photography: Magnesium produces a bright flash. It is used in strip form.
APPEARS IN
संबंधित प्रश्न
Give a reason for the following:
Alkali metals are good reducing agents.
State one use of the following metal:
Silver
State one use of the following metal:
Gold
Which of the following alloys contains mercury as one of the constituents?
Mention two uses of the following metals and non-metals
Iodine
Name a metal which is best conductor of electricity :
State two important uses of the following metal.
Uses of magnesium
State two important uses of following metal
Uses of mercury
State the position of the following in the periodic table:
Alkaline earth metals
State the position of the following in the periodic table:
Iron and zinc
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Water.
Why are alkali metals kept in kerosene oil?
Write name.
The nonmetal having electrical conductivity.
What is it made from? Why?
Electric cables
Give a reason why a green deposit is seen on the surface of an article of copper
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.
An amorphous substance which turns from pale green to black on strong heating evolving a colourless, acidic gas as the only gaseous product.
Write the name.
Two highly reactive metals-
When a copper coin is dipped in the solution of silver nitrate, it shows a lustre on its surface. Explain this process with the help of a chemical equation.
A is a reddish-brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B, and C with reaction.
Which of the following is not a metal?
