Advertisements
Advertisements
प्रश्न
Give a reason for the following statement :
Brass & bronze are examples of mixtures, while copper sulphate & lead nitrate are examples of compounds.
Advertisements
उत्तर
Brass and bronze are mixtures as the composition of elements are not fixed by mass and has no formula.
Lead nitrate and copper sulphate are compounds as they have a fixed ratio of elements by mass and have a formula like Pb[NO3]2 and CuSO4.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Chalk powder dissolved in water is an example of a Chalk powder dissolved in water is an example of a _________.
Name the substance you will add to speed up sedimentation.
State four differences between compounds and mixtures.
Give two examples of the following.
Metals which are soft
State the number of atoms of each element, present in \[\ce{HNO3}\].
Also name the compound.
Give reason: Graphite is used to make a lead of the pencils.
Tick (√) the correct alternative from the choice given for the following statement
A metal which is brittle
Select the correct answer from the choice given below.
The type of molecule- bromine
Match the following:
| 1. | Co2 | a. | Robert Boyle |
| 2. | Sulfur | b. | Making mobile phones |
| 3. | Element | c. | triatomic molecule |
| 4. | Gallium | d. | Polyatomic molecule |
What is the Latin name of Sodium?
