Advertisements
Advertisements
प्रश्न
State two important uses of following metal
Uses of mercury
Advertisements
उत्तर
Uses of mercury :
- It is used as a thermometric liquid in laboratory as well as clinical thermometers.
- Gold amalgam and silver amalgam are used in dentistry for filling tooth cavities.
APPEARS IN
संबंधित प्रश्न
The atomic number of an element X is 12.
(a) What must an atom of X do to attain the nearest inert gas electron configuration?
(b) Which inert gas is nearest to X?
Name an alloy of lead and tin.
Fill in the following blank with suitable word:
The electrical conductivity and melting point of an alloy is ........... than that of pure metals.
Mention two uses of the following metals and non-metals
Iodine
Fill in the blank
A metal that gives dazzling effect to crackers when they explode is ______
State two important uses of following metal.
Uses of copper
State two important uses of following metal:
Uses of aluminium
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
Write name.
Alloy of sodium with mercury.
Which is the non-ionic compound in the compounds given below.
AgNO3 + Nacl → AgCl + NaNO3
Give reasons for the following:
Most metals conduct electricity well.
With reference to the following metals state their use in daily life metal:
iron
Write the name.
Two highly reactive metals-
Electronic configuration of metal A is 2,8,1. Electronic configuration of metal B is 2,8,8,2. Which of the above metals is more reactive? Explain with reason.
Complete the following flow chart.

Give reasons for the following.
- Aluminum foils are used to wrap food items.
- Immersion rods for heating liquids are made up of metallic substances.
- Sodium and potassium are stored in kerosene.
- Mercury is used in thermometers.
The most abundant element in the universe is ____________.
Which of the following two combinations are correct?
| Metal | Gas Evolved | |
| (i) | Copper | Yes |
| (ii) | Iron | Yes |
| (iii) | Magnesium | No |
| (iv) | Zinc | Yes |
