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What is weak acid?
What is meant by ph of a solution?
What is the difference between fractionation and distillation?
What is the role of mercuric sulphate?
Why is ammonia solution added while preparing edta solution?
What is si unit of viscosity-coefficient?
What is the min constitutes of haematite ore?
Differentiate between modern periodic table and mendeleevs table?
How is arsenic produced?
What is the reaction that occurs between iodine and sodium thiosulphate?
What is glacial acetic acid? What are its uses?
Explain extraction of ephedrine from a mineral block?
explain sour gas?
Which is the best conductor of electricity?
Write the equation of photosynthesis?