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MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Alkali metals and alkaline earth metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Identification Of Ions
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Salts
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry Of Elements - Transition metals
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Nitrogen
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Sulphur
MATTER - PROPERTIES AND TRANSFORMATION: Organic Chemistry - Hydrocarbons
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Formulae, Moles And Equations
MATTER - PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Gaseous State
MATTER: PROPERTIES AND TRANSFORMATION: Principles Of Chemistry - Solutions and acid-base titration
PRINCIPLES OF CHEMISTRY: Electrochemistry
5/50 MCQs for:
MATTER - PROPERTIES AND TRANSFORMATION: Chemistry of Elements - Nitrogen
Farmers apply nitrogenous fertilizers to their crops primarily to:
Promote fruit ripening.
Enhance plant growth and yield.
Increase soil acidity.
Improve water retention in soil.
When diluting concentrated nitric acid, which of the following is the correct procedure?
The order of addition does not matter.
Add concentrated acid slowly to water.
Dilute by cooling the acid.
Add water slowly to the concentrated acid.
How is nitrogen dioxide (NO₂) typically prepared in the laboratory?
By heating sodium nitrate.
By burning nitrogen in air.
By the decomposition of ammonia.
By the reaction of concentrated nitric acid with copper.
What is the primary reason for using nitrogen compounds in agriculture?
To control weed growth.
To improve soil drainage.
To provide essential nutrients for plant growth.
To act as pesticides.
What are the products when lead nitrate is heated strongly?
Lead oxide, nitrogen dioxide, and oxygen.
Lead and nitrogen gas.
Lead carbonate and nitrogen.
Lead nitrite and oxygen.
