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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Brass and bronze are
विकल्प
elements
mixtures
compounds
all of the above
उत्तर
mixtures
APPEARS IN
संबंधित प्रश्न
Give one example for the following types of mixtures :
solid-liquid heterogenous mixture.
Define: Compounds
Give two examples of the following.
Inert gases
State the number of atoms of H2SO4
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.
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
There are ______ number of known elements.
The first letter of an element is always written in ______ letter.
Why are utensils made up of aluminium and brass?
Higher-Order Thinking questions:
Why is hydrogen considered an element?
