Advertisements
Advertisements
प्रश्न
With reference to the following metals state their use in daily life metal:
Aluminium
उत्तर
Aluminium:
- Making utensils as a metal, it is easily moulded in utensils.
- In paints – Aluminium powder is mixed with linseed oil as it is anti-corrosive in nature.
APPEARS IN
संबंधित प्रश्न
Give reasons for the following.
Copper cannot displace zinc from its salt solution.
State one use of Silver.
State one use of Gold.
Mention two uses of the following metals and non-metals
Aluminium
Mention two uses of the following metals and non-metals
Iodine
State two important uses of following metal
Uses of copper
State two important uses of following metal
Uses of magnesium
State the position of the following in the periodic table:
Aluminium
Give the general characteristics of:
Alkali metals,
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
Give the general characteristics of:
Alkaline earth metals with reference to
(i) bonding
(ii) action of air
(iii) action of water
(iv) action of acid
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 is it made from? Why?
Ornaments
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.
Write scientific reason.
Meena’s mother uses lemon or tamarind for cleaning copper vessels turned greenish.
What is ductility?
Name one metal and one non-metal that exist in liquid state at room temperature. Also name two metals having melting point less than 310 K (37°C)
The typical shine of metals is called ______.
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:
______ is the reducing agent.
