What is weak acid?
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How is electricity generated from water ?
Why does a match-stick burn, when struck against the match-box surface
Why does a piece of iron float on mercury, but sink in water ?
What is the colour of diamond, when pure ?
What is the composition of air ?
Why are the titration involving edta carried out slowly towards the end point?
Explain the structure of a dna molecule?
What is german silver?
Acid value definition is number milligrams of koh required to nuetralise the acid present in one gram oil & fats but why not use naoh for nuetralisation?
What is the composition of bronze ?
Explain about Oxide ?
Why is a newly made quit warmer than an old one ?