Give the names of the elements present in the following compounds:
(a) Quickline (B) Hydrogen bromide (c ) Baking soda (D) Potassium sulphate

Explanation

The names of elements present can be given only if the chemical formula of the compound is know
For example,
(a)Quick lime: It is the commercial name of the compound. Its chemical name is calcium oxide and the chemical formula is CaO.
(b)Hydrogen bromide:The chemical formula of the compound is HBr.
Elements present:hydrogen(H),bromide(Br).
(c )Baking powder:It is the commercial name of the compound. Its chemical name is sodium hydrogen carbonate and the chemical formual is `NaHCO_(3)`.
Elements present:sodium (Na),hydrogen (H), carbon(C ),oxygen(O).
(d)Potassium sulphate:The chemical formula of the compound is `K_(2)SO_(4)`
Elements present:potassium (K), sulphur(S),oxygen(O).