Advertisements
Advertisements
प्रश्न
Choose the correct answer.
A 5 per cent sugar solution means that :
पर्याय
5 g of sugar is dissolved in 95 g of water.
5 g of sugar is dissolved in 100 g of water.
उत्तर
A 5% sugar solution means 5 gm of sugar is dissolved in 95 gm of water. Therefore, the correct option is “a”.
APPEARS IN
संबंधित प्रश्न
The smallest unit of matter that exists freely in nature is called ...........
Which of the following is a mixture ?
Salt, Air, Water, Alum, Sugar
What is meant by saying that metals are lustrous ?
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
Classify the following into metals, non-metals and metalloids:
Silicon, Mercury, Diamond, Sulphur, Iodine, Germanium, Sodium, Carbon, Magnesium, Copper, Boron, Helium
The elements which normally exist in the liquid state are :
One of the following represents the solution of solid in a solid. This one is :
The solubility of ammonium chloride in water at various temperatures is given below :
Temperature | : | 10°C | 20°C | 40°C | 60°C | 80°C |
Solubility | : | 24 g | 37 g | 41 g | 55 g | 66 g |
What mass of ammonium chloride would be needed to make a saturated solution of ammonium chloride in fifty grams of water at 40°C ?
What difference in the property of two miscible liquids enables their separation by fractional distillation ?
How will you separate camphor, common salt and iron nails from their mixture ?
Justify your answer.
Figure 1 | Figure 2 | Figure 3 |
![]() |
![]() |
![]() |
The arrangement of particles in three different phases of matter is shown above.
- Which state is represented by Fig. 1?
- In which state will the inter-particle attraction be maximum?
- Which one of them cannot be contained in an open vessel?
- Which one can take the shape of its container?
The property which allows the metals to be hammered into their sheets is ______.
The particles in the matter are extremely small and can be seen even with a powerful microscope.
Stars including Sun are covered in ______.
Match the physical quantities given in column A to their S I units given in column B:
(A) | (B) | ||
(a) | Pressure | (i) | cubic metre |
(b) | Temperature | (ii) | kilogram |
(c) | Density | (iii) | pascal |
(d) | Mass | (iv) | kelvin |
(e) | Volume | (v) | kilogram per cubic metre |
The non S I and S I units of some physical quantities are given in column A and column B respectively. Match the units belonging to the same physical quantity:
(A) | (B) | ||
(a) | degree celsius | (i) | kilogram |
(b) | centimetre | (ii) | pascal |
(c) | gram per centimetre cube | (iii) | metre |
(d) | bar | (iv) | kelvin |
(e) | milligram | (v) | kilogram per metre cube |
Give some examples of the Tyndall effect observed in your surroundings?
Intermolecular space is maximum in ______.
Define the term matter.
Define the term matter.