From which substance are the dues manufactured ?
Why does the snow on the mountains not melt all at once, not changed into water very slowly?
however ozone is havier than oxygen still ozone is up there in sky why?
What is Acidity of a base ?
Why is starch indicator added towards the end point?
Why is sulphuric acid added during the preparation of standard fas solution?
Explain the following ? Isotope, Isobars, Stable configuration, Electronic Theory of Valency, Valency
Which gas is used in hospitals for the artificial respiration ?
What is quick lime ?
Explain the Hydrogen and its Compounds ?
What is the monomer of polyethene?
Write the chemical formula for epsom salts?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason????????? When a cool glass rod is suudenly heatd, it cracks. Why?????????