Chemistry Questions

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

Isobars are atoms of different chemical elements that have ______.

Who first discovered the every eighth element had properties similar to that of the first?

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.

Factors that may influence enzyme activity?

Which among the following statements are TRUE regarding synthetic fibre?

I. They melt after catching fire.

II. They are more durable.

III. They are prepared by a number of processes using petrochemicals.

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

The process of transferring of charge from a charged object to the earth is called ______________.