What is weak acid?
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What is ignition point ?
Explain the Hard and Soft water ?
Why is salt thrown on the frozen road ?
How many electrons does benzene have?
Explain the Molecule?
A dynamite catridge struck in a rock makes the rock burst in being fired. How dies it happen ?
Why do you require laboratory temperature for viscosity determination?
What is Valency ?
Why does a white paper appear white, when light is not to fall on it ?
why do hard water never produce foam when a soap is dissolved?
Why can?t the meat and dal( pulses ) be cooled well on the top of high mountains ?
Distinguish between flannel and flannelette ?