Advertisements
Advertisements
प्रश्न
Give one use of the following substance:
Iron
उत्तर
Iron : To make machines tools and building material.
APPEARS IN
संबंधित प्रश्न
Name a soft metal.
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Marble
Name: the Hardest Naturally Occurring Substance
What is meant by 2H and H2
Indicate whether the following statement is true or false:
Metals can be polished.
Select the correct answer from the choice in the bracket.
The positively charged particle of an atom.
‘An atom is the basic unit of an element’. Draw a diagram of an atom – divisible as seen today.
The diagram represents fractional distillation for the separation of mixtures. Answer the following :
- Can two immiscible liquids be separated by this process?
- Separation of liquids by this process is based on which physical property?
- If methyl alcohol & water are to be separated, which liquid would remain in flask ‘X’ after condensation.
- Give a reason for the above answer.
- State the purpose of the fractionating column in the apparatus.
Reason out
Elements are called semimetals.
