Which gas used for purifying, air in underground enterprises ?
What is quick lime ?
What are the electrodes used in the measurement of ph for the determination of pka?
Explain about Characters of Catalytic Reactions ?
Why is the indicator eriochrome black(ebt) shows wine red color at the beginning and blue color at the end?
Why is the color of the indicator drop remains the same at the end point?
Explain the Electronic Theory of Valency?
Which is heavier, water or ice ?
Is air mixture or compound ?
explain sour gas?
How BIS Decedied the LSF value 0.66-1.02 with calculation.
What is hydrogenation of oils ?
Can a molecule be divided ?