Advertisements
Advertisements
प्रश्न
Name a metal which is best conductor of electricity :
Advertisements
उत्तर
Silver
APPEARS IN
संबंधित प्रश्न
State one use of the following metal:
Copper
State one use of the following metal:
Aluminium
Mention two uses of the following metals and non-metals
Gold
State two important uses of following metal:
Uses of silver
State two important uses of following metal.
Uses of copper
State two important uses of following metal
Uses of tin
State two important uses of following metal
Uses of lead
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Write name.
Alloy of sodium with mercury.
Write name.
Molecular formula of the common ore of aluminium.
When a copper coin is dipped in silver nitrate solution, a glitter appears on the coin after some time. Why does this happen? Write the chemical equation.
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
State the position of the following in the periodic table:
Halogens
What is it made from? Why?
Electric cables
With reference to the following metals state their use in daily life metal:
Lead
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.
Aluminium: _______: gold : : electric insulator
Assertion: Mercury is solid in room temperature.
Reason: Mercury is a non-metal.
Can you store pickle in an aluminium utensil? Give reason.
The metals which are found in both free state as well as combined state are ______.
