why we shrink our body during cold
What are filters? Why are they used?
Differentiate between modern periodic table and mendeleevs table?
Why is ph increases suddenly after the equivalence point?
Why be is not soluble in liquid ammonia?
However ozone is heavier than oxygen still ozone is up there in sky why?
What is the composition of ferroin?
What is wave number?
Define what is oxidation and reduction reaction?
How are the waters classified based on the degree of hardness?
describe the lewis dot structure of Mg2+?
What is meant by ph of a solution?
Which is the best conductor of electricity?
What is the role of silver sulphate?
How do you express the total hardness of water?