Advertisements
Advertisements
प्रश्न
Fill in the blank
A metal that gives dazzling effect to crackers when they explode is ______
Advertisements
उत्तर
A metal that gives dazzling effect to crackers when they explode is magnesium.
APPEARS IN
संबंधित प्रश्न
What happens when Iron nails are placed in copper sulphate solution?
Write word equations of the reactions involved.
Fill in the following blank with suitable word:
Brass is an alloy of copper and .........
Aluminium is not used to make :
Statements given below are incorrect. Write the correct statements :
Bronze is a mixture of 10% copper, 80% zinc and 10% tin.
State two important uses of following metal
Uses of mercury
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Write name.
The nonmetal having electrical conductivity.
Write name.
The reagent that dissolves noble metals.
State the position of the following in the periodic table:
Halogens
Name the following:
The chemical compound responsible for the green deposit on the surface of articles of copper.
Soft metal : Na : : hard metal : _______
Complete the following flowchart.
Which one of the following four metals would be displaced from the solution of its salts by other three metals?
Which of the following metals can displace the other two metals from their salt solutions?
Silver and copper are very good conductors of electricity.
Metals have high melting points.
Which metal has the highest ductility?
Which metals are not solid at room temperature?
Compare the conductivity of metals and non–metals.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
Metal atoms tend to have a maximum of ______ electrons in the outermost shell.
