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प्रश्न
A kind of matter which can sublime is
विकल्प
water
plastic
milk
iodine
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उत्तर
iodine
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संबंधित प्रश्न
Define the following term of Matter .
What are the conditions for 'something' to be called 'matter'?
Fill in the following blank with suitable words :
The best evidence that the particles of matter are constantly moving comes from the studies of ................. and ...................
Name the property which allows metals to be hammered into thin sheets.
Name the property which enables metals to be drawn into wires.
Which one of the following is not a metalloid ?
The property/properties which enable copper metal to be used for making electric wires is/are :
On the basis of composition of matter, milk is considered to be :
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
A solution contains 5.6 mL of alcohol mixed with 75 mL of water. Calculate the concentration of this solution.
What is the difference between solutions and colloids ?
You have been given a suspension and a solution. How could you tell the difference between them by their appearance ?
Which of the following will show Tyndall effect ? Why ?
- Salt solution
- Starch solution
- Milk
- Copper sulphate solution
How will you separate a mixture of common salt, sulphur powder and sand ?
Which method is better for recovering sugar from sugar solution : evaporation or crystallisation ? Give reason
for your answer.
The liquid air has three components X, Y and Z whose boiling points are : –186°C, –183°C and –196°C,
respectively. When liquid air is fed into a tall fractional distillation column from near its bottom and warmed
up slowly :
(a) Which component will be collected from near the bottom of the fraction distillation column ? Why ?
(b) Which component will be collected from the top part of the fractional distillation column ? Why ?
(c) Which component will be collected from the middle part of the fractional distillation column ? Why ?
(d) What could the component X, Y and Z be ?
Complete the following table:
| S.No. | CELSIUS | KELVIN |
| 1. | 90°C | 363 K |
| 2. | ______ | 283 K |
| 3. | 63 °C | ______ |
| 4. | 250°C | ______ |
| 5. | ______ | 303 K |
Intermolecular space is maximum in ______.
Which statement is not correct for a mixture
Define the term matter.
