Advertisements
Advertisements
प्रश्न
Fill in the blan
An ________ is a homogeneous mixture of two or more metals.
Advertisements
उत्तर १
An alloy is a homogeneous mixture of two or more metals.
उत्तर २
An alloy is a homogeneous mixture of two or more metals.
APPEARS IN
संबंधित प्रश्न
Fill in the blank
Use of a ................. to separate the components of a mixture of solids is based on the difference in the size of the components
Tick the most appropriate answer
Solutions are
- heterogeneous mixtures.
- compounds
- homogeneous mixtures.
- elements
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Sand
Give two examples of the following.
Metals which are soft
Give two examples of the following.
Non-metals which are lustrous
Find the atomicity of the Following molecule:
Dinitrogen Oxide
Fill in the blank
The most abundant element in the atmosphere is _______.
Fill in the blank
A diatomic gaseous element is _______.
Select the correct answer from the choice given below.
The type of molecule- bromine
Select the correct answer from the choice given below.
The element which is malleable
Select the correct answer from the choice given below.
An impure substance
Write the names of elements from the following symbol:
Ir
Write the names of elements from the following symbol:
Pt
Explain the term ‘mixture’.
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.
Select the correct answer from the choice given below to complete the sentence :
Dust in air is an example of _________ mixture.
Elements are the______ form of pure substances.
What are elements? What are they made of?
Name the process associated with the following
A fine beam of light entering through a small hole in a dark room illuminates the particles in its paths.
Match the following:
| 1. | Co2 | a. | Robert Boyle |
| 2. | Sulfur | b. | Making mobile phones |
| 3. | Element | c. | triatomic molecule |
| 4. | Gallium | d. | Polyatomic molecule |
