Advertisements
Advertisements
प्रश्न
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)
उत्तर
- Metal that exists in a liquid state at room temperature - mercury.
- Non-metal that exists in a liquid state at room temperature - bromine
Two metals that have a melting point less than 310 K are:
Mercury - 234.32 K
Gallium - 302.91 K
APPEARS IN
संबंधित प्रश्न
Mention two uses of the following metals and non-metals
Gold
Name a metal which is not malleable :
Name the following:
A metal used in packaging.
Name the following:
A halogen which is a solid at room temperature.
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.
Can you store pickle in an aluminium utensil? Give reason.
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.
Why are metalloids called semimetals?
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.
X [2, 8, 7] and Y [2, 8, 2] are two elements. Using this information, complete the following:
______ is the reducing agent.