Advertisements
Advertisements
प्रश्न
Write the molecular formula for the oxide and sulphide of following elements of Calcium
Advertisements
उत्तर
Calcium oxide CaO
Calcium sulphide CaS
APPEARS IN
संबंधित प्रश्न
Write the molecular formula of the following compounds of Sulphur trioxide.
Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formulae for the following compounds and name the elements present of Baking soda.
A solution of a substance ‘X’ is used for white washing.
(a) Name the substance ‘X’ and write its formula.
(b) Write the reaction of the substance ‘X’ named in (a) above with water.
Write the molecular formulae of Sodium hydroxide
Write the molecular formulae of Hydrogen nitrate (nitric acid).
Write the molecular formulae of Hydrogen sulphate (sulphuric acid).
With reference to water and ammonia as compounds respectively, state the valency of oxygen and nitrogen.
Write the chemical formula of the following compound in a step-by-step manner –
Potassium dichromate
Write the chemical formula of the following compound in a step-by-step manner –
Magnesium nitride
Complete the statement given below by filling in the blanks with the correct words.
The valency of iron in FeO is _______ of chlorine [chloride] in CaCl2 is ________ and of dichromate in K2 Cr2 O7 is ________.
