Give the others form of iron ore.

586

How is hardness of water caused?

643

How do you express the total hardness of water?

653

what are the role of chemistry education in sustainable development

2158

Write the structural formula for edta.

627

What is a cell?

703

What is the chemical composition of fat in human body?

663

In the calculation of calorific value of any fuel why the latent heat of vap. of water is taken as 587 kj/mol whereas actually it is 540kj/mol?

1809

What is the metal used to extract copper from the solution of copper sulphate?

654

what is difference b/w "regio selectivity" & "sterio selectivity"

2045

Why we use potassium dichromate in control of absorbance in uv region and copper sulphate in control of absorbance in visible region?

2456

What is the role of mercuric sulphate?

563

What is the chemical formula of alum?

585

What are the advantages of potentiometric titration?

652

Which wavelengths are visible to human eye?

706