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प्रश्न
There are large intermolecular gaps in
पर्याय
water
iron ball
common salt
air
उत्तर
air
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संबंधित प्रश्न
What do you understand by the change of phase of a substance?
The Kelvin temperature is 270 K. What is the corresponding Celsius scale temperature ?
Which contains more heat, 1 kg of ice of 0° C or 1 kg of water at 0° C ? Give reason for your answer.
There are four substances W, X, Y and Z. The substance W is a dark violet solid having diatomic molecules. A solution of W in alcohol is used as a common antiseptic C. The substance X is a white solid which is usually recovered from sea water on a large scale. The substance Y is a white solid which is insoluble in water and used in the form of small balls for the safe storage of woollen clothes. The substance Z is a yet another white solid which is used in making commonly used dry cells.
- Name (i) W (ii) X (iii) Y and (iv) Z.
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- Which substance is organic in nature ?
- What is the name of substance C ?
- Which substance belongs to the halogen family ?
Why does a candle become smaller on burning with time?
Fill in the blanks:
Water boils at ______.
A kind of matter which can sublime is
What is it made from? Why?
The sheets used for roofing.
Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.
Are any new products formed during the above process.
Fill in the blank with the appropriate word of the statement given below:
Change of milk of curd is a _______ change.
