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प्रश्न
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.
उत्तर
Mountaineers carry oxygen cylinders with them while climbing high mountains.
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संबंधित प्रश्न
What is nitrogen-fixation?
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Give reason:
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Air is a mixture of many _______.
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List out the uses of nitrogen.
Nitrogen is essential for burning.
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How to show the presence of carbon-di-oxide in the air?
