Chemistry Questions

Which of the following statements are CORRECT?

I. Esters are sweet smelling substance.
II Esters are used in making perfumes.
III. Functional group of ester is R-O-RꞋ.

Milk of Magnesia is used as a 

Isobars are atoms of different chemical elements that have ______.

Which type of reaction occurs when carbon burns in oxygen to give carbo dioxide?

Factors that may influence enzyme activity?

Elements having same atomic numbers but different mass number are called ______.

Which one of the following statements would be INCORRECT to use?

Which of the following statements is/are true or false?

Statements :

A) H2S burns in air to give H2O and SO2

B) The decomposition of Ferrous Sulphate into Fe2O3, SO2 and SO3 occurs in the presence of heat.