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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.
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उत्तर
Mountaineers carry oxygen cylinders with them while climbing high mountains.
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संबंधित प्रश्न
Complete and balance the following chemical equation.
\[\ce{HgO ->[heat]}\] ______ + _______
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
Solution of carbon dioxide in water is called _________ acid.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
Fill in the blank
Green plants need ________________to prepare food.
Write ‘true’ or ‘false for the following;
The major component of air is oxygen.
Air is a mixture of many _______.
What is the presence of harmful substance in the air called?
______ is necessary for all acids.
______ is used as a substitute for compressed air in tyres.
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
