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प्रश्न
Fill in the blank spaces by choosing the correct words from the given list.
List: amalgam, chlorine, gallium, sodium chloride, silver chloride
______ is a liquid metal.
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उत्तर
Gallium is a liquid metal.
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संबंधित प्रश्न
Fill in the following blanks with suitable words:
A metal having low melting point is ..................... but a non-metal having very high melting point is ..............
State one use of Iron.
Fill in the following blank with suitable word:
The alloy in which one of the metals is mercury is called an ...............
Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.
What is meant by 22 carat gold? Name the metals which are usually alloyed with gold to make it harder.
How are the properties of an alloy different from those of the constitutent elements?
Mention two uses of the following metals and non-metals
Oxygen
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 ________
Name a metal which is not malleable :
State the position of the following in the periodic table:
Alkali metals
State the position of the following in the periodic table:
Alkaline earth metals
Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:
Hydrochloric acid,
Why are alkali metals kept in kerosene oil?
Write scientific reason.
Generally the ionic compounds have high melting points.
Can you store pickle in an aluminium utensil? Give reason.
A is a reddish-brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B, and C with reaction.
Metals are usually solids or gases at room temperature.
The metal can be cut with a knife ______.
Why are metalloids called semimetals?
