Advertisements
Advertisements
प्रश्न
Fill in the blanks:
Oxygen is collected by the __________ displacement of ________.
Advertisements
उत्तर
Oxygen is collected by the downward displacement of water.
APPEARS IN
संबंधित प्रश्न
Two substances from which oxygen can be obtained at a large scale.
Why is hydrogen peroxide preferred in the preparation of oxygen gas ?
What happens when potassium nitrate is heated
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
Every nine parts of water by weight contains eight parts by weight of _________.
Complete and balance the following equation
Al + O2 →
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Potassium nitrate crystals on heating strongly yield potassium nitrite and ________ gas.
Statement given below is incorrect. Write the correct statement :
Moist oxygen causes rusting in carbon.
State any four physical properties of oxygen gas.
Write fully balanced equation for the following :
Na2O + H2O →
Oxygen is a poor conductor of heat and electricity.
