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प्रश्न
Nitrogen is _______ than air.
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उत्तर
Nitrogen is lighter than air.
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संबंधित प्रश्न
Answer the question put against the following constituents of air:
Nitrogen : Explain its significance for plants and animals.
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Complete and balance the following equation
CaO + H2O →
Give reason:
A burning candle stops burning if covered with a glass tumbler
Name the following:
An inert gas which has a low boiling point and is used for producing very low temperatures
Give word equation for the following conversion:
Nitrogen dioxide to nitric acid
Which gas in the atmosphere is essential for respiration?
A gas that neither burns nor supports burning is ______.
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Mountaineers carry oxygen ______ with them, while climbing high mountains.
