What is polar hcl?
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Why does the filament of an electric lamp glow, when current passes through it ?
Which gas is used in bleaching powder.
Can Someone tell me about pH: 3
What is Poling ?
Which is the main constituent in air ?
A dynamite catridge struck in a rock makes the rock burst in being fired. How dies it happen ?
why do hard water never produce foam when a soap is dissolved?
What is the octane number range of te petrol used in India ? 1)90-95 2)90-99 3)80-90
Why is a vessel of water heats more quickly, when heat is applied at the bottom than it is heated at the top?
what is ppm?how to prepare 75 ppm?
In winter, on a cold morning, the cement feels colder to the foot than a carpet. Why ?
What test will you use to distinguish cotton from wool ?