Advertisements
Advertisements
प्रश्न
Give the formula of the following gas:
Ammonia
Advertisements
उत्तर
Ammonia — NH3
APPEARS IN
संबंधित प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Magnetic separation
Write the full form of IUPAC. Name the elements represented by the following symbols:
Au, Pb, Sn, Hg
An atom of an element is denoted by a “symbol” Explain the meaning of the term ‘symbol’. State a reason for representing the following element by its symbol.
Copper by ‘Cu’
Match the formulas of the following of bases with their correct names.
Bases – (a) NaOH (b) KOH (c) Ca(OH)2 (d) Zn(OH)2
Names – (1) Potassium hydroxide (2) Zinc hydroxide (3) Aluminium hydroxide (4) Calcium hydroxide (5) Sodium hydroxide
Give the symbol of the following element:
Fluorine
Give the symbol of the following element:
Xenon
Give the symbol of the following element:
Radon
State the type of element for the following:
Oxygen
Write the chemical formula of the following:
calcium sulphide
What is the significance of the symbol of an element?
