Some Basic Concepts Of Chemistry

Question 1

What drugs are effective in cancer therapy ?

Answer 1

Cisplatin and Taxol

Question 2

What drug is used to help AIDS victims ?

Answer 2

AZT (Azidothymidine)

Question 3

What are the two different systems of measurement ?

Answer 3

English System and Metric System

Question 4

Why is Chemistry called the science of atoms and molecules ?

Answer 4

Chemistry deals with composition , structure and properties of matter . These aspects can be best described and understood in terms of basic constituents of matter : atoms and molecules .
Thus , Chemistry is called the science of atoms and molecules .

Question 5

What is candela the unit for ?

Answer 5

Luminous intensity

Question 6

What is Mole the unit of ?

Answer 6

Amount of substance

Question 7

What is Kelvin the unit for ?

Answer 7

Thermodynamic temperature

Question 8

Name the SI unit for :

a) length
b) mass
c) time
d) electric current

Answer 8

a) metre
b) kilogram
c) second
d) ampere

Question 9

What was Chemistry called in ancient India ?

Answer 9

In ancient India , Chemistry was called Ramayan Shastra , Rastantra , Ras Kriya or Rasvidya .