Advertisements
Advertisements
प्रश्न
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
A solution of a metal in mercury is called ________
उत्तर
A solution of a metal in mercury is called amalgam.
APPEARS IN
संबंधित प्रश्न
What happens when Dilute sulphuric acid is poured on a copper plate?
Write word equations of the reactions involved.
The atomic number of an element Y is 16.
(a) What must an atom of Y do to achieve the nearest inert gas electron arrangement?
(b) Which inert gas is nearest to Y?
What is an alloy? How is an alloy made?
Give reasons
Aluminium is used in making aircrafts.
Tick (√) the most appropriate answer.
Graphite is used :
State two important uses of following metal:
Uses of silver
Write name.
Molecular formula of the common ore of aluminium.
Write name.
The nonmetal having electrical conductivity.
Write scientific reason.
Pine oil is used in froth flotation.
State the position of the following in the periodic table:
Halogens
With reference to the following metals state their use in daily life metal:
Magnesium
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.
What is ductility?
Why are bells made of metals?
Which one of the following metals do not react with cold as well as hot water?
Which of the following metals can displace the other two metals from their salt solutions?
| Zinc | iron | copper |
Metals have high melting points.
Why do metals appear shiny?
Why are metalloids called semimetals?
Compare the conductivity of metals and non–metals.
