Advertisements
Advertisements
प्रश्न
Give reason for the following:
Oxygen gas does not affect moist blue litmus paper, but carbon dioxide turns it slightly pink.
उत्तर
Oxygen is neutral in nature, So, it does not affect blue litmus paper. Whereas Carbon dioxide is slightly acidic in nature, So, it changes blue litmus to slightly pink.
APPEARS IN
संबंधित प्रश्न
The most abundant element in the earth’s crust.
Why is oxygen collected by downward displacement of water?
What happens when oxygen gas is passed through alkaline pyrogallol solution ?
Statement given below is incorrect. Write the correct statement :
The percentage of oxygen in air by volume, varies from 21% to 22%.
Fill in the blank:
Manganese dioxide acts as a _________.
Fill in the blank:
Oxygen is ___________ to litmus testing.
What happens when Magnesium burns in oxygen ? Also give the balanced chemical equation for the reaction.
Complete and balance the following equation
\[\ce{N2 + O2 ->[3000°C]}\]
Write fully balanced equation for the following :
Na2O + H2O →
State three uses of oxygen, other than artificial respiration.
