Advertisements
Advertisements
प्रश्न
Which of the following does not have a fixed melting point/boiling point ?
विकल्प
gold
ethanol
air
oxygen
Advertisements
उत्तर
air
Air is a homogeneous mixture of different gases. Hence, it does not have a fixed melting or boiling point.
APPEARS IN
संबंधित प्रश्न
Fill in the blank :
The state of matter with definite volume and definite shape is called______
What is the scientific name of particles which make up mater?
Honey is more viscous than water. Can you suggest why?
Classify the following into elements and compounds :
- H2O
- He
- Cl2
- CO
- Co
Classify the following as elements or compounds :
Iron, Iron sulphide, Sulphur, Chalk, Washing soda, Sodium, Carbon, Urea
Which of the two will scatter light : soap solution or sugar solution ? Why ?
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
In what respects does a true solution differ from a colloidal solution ?
Define Foam Give one example.
21.5 g of sodium chloride dissolves in 60 g of water at 25°C. Calculate the solubility of sodium chloride in water at that temperature.
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not ?
Which one of the following is not a chemical change ?
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
What's the solution?
We need to make a sherbet quickly for some guests. But we only have sugar candy in the house.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
______ is not made of matter.
Solid is an arrangement of particles ______.
Define the term matter.
Define the term matter.
Define the term matter.
