Advertisements
Advertisements
Question
Name: Two substances used to make jewellery.
Advertisements
Solution
Two substances used to make jewellery are:
1.Gold.
2. Silver as these are shining, lustrous, and ductile.
APPEARS IN
RELATED QUESTIONS
Name the technique that you use if only the solid component of a solution is required.
Give Two Examples for Each of the Following: Non-metals
Indicate whether the following statement is true or false:
Ozone is a triatomic molecule
Differentiate between the terms –
elements, compounds & mixtures.
Complete the statement given below by filling in the blank with the correct word.
The basic unit of an element is an __________.
Write the names of elements from the following symbol:
Pt
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.
Match the following.
| Atom | Building block of matter |
| Element | Atoms of different kinds |
| Compound | Atoms of the same kind |
| Molecule | Smallest unit of a substance |
Name the element which is used for making computer chips.
Higher-Order Thinking questions:
Why is hydrogen considered an element?
