Why ph scale range is 14?
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Why is clinical thermometer used in preference to and ordinary Fahrenheit thermometer ?
Though the secondary cell can be recharged again and again, still they have a lifetime. Why?
Which element is nether a solid nor a liquid?
While standing on railway platform and heating the whistle of an engine coming towards us , we hear the sound increasing; bit when the engine is receding from us it appears to fall why ?
What is hydrogenation of oils ?
Why does water boil above 100 o C in mines ?
which of the following is the best conductor of electricity?
Why is disodium salt of edta preferred to edta?
Is diamond element ?
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?
Why is salt thrown on the frozen road ?
What is glacial acetic acid? What are its uses?