Advertisements
Advertisements
प्रश्न
How will you prove that oxide formed by burning sodium is basic in nature?
उत्तर
The sodium oxide dissolves in water to form sodium hydroxide, which turns red litmus paper blue. Hence, sodium oxide is basic in nature.
Na2O + H2O → NaOH
Sodium oxide Water Sodium hydroxide
APPEARS IN
संबंधित प्रश्न
A metal highly resistant to rusting.
Fill in the blank by choosing the correct word from the given list.
List: oxygen, carbonic, suIphur dioxide gas, precipitation, helium
____________ gas can cause acid rain.
Write ‘True’ or ‘False’ in front of following statement.
Nitrogen is a gaseous non-metal essential for respiration.
What happens when Iron burns in oxygen ? Also give the balanced chemical equation for the reaction.
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
To prevent rusting, the underside of the ships is coated with __________________.
State how nitrogen is utilised by plants for their growth. Give a reason why nitrogen is used in flushing food packages.
Describe simple experiments to show the presence of -
water vapour in air using a glass tumbler and ice.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the word equation for the reaction involving the above preparation of oxygen.
In the laboratory preparation of oxygen from hydrogen peroxide answer the following:
State the method of collection of the oxygen gas giving reasons.
Distinguish between:
Combustion & Rusting with suitable word equations only?
