P6 Chemistry Interesting Q/A

Note – This has been submitted by someone from o-levels, but most of it still applies to IGCSE PAPER CHROMATOGRAPHY (ASCENDING) Qn) Why is paper chromatography carried out in an enclosed environment?  Ans) It serves to prevent the loss of the solvent from the tube by evaporation.  Qn) Why is the starting line drawn with …

IGCSE Physics 0625 Essential Definitions

Absolute zero The theoretical lowest temperature possible, which occurs when all random motion of molecules has ceased Acceleration due to gravity The acceleration produced in a bodydue to the earth’s attraction is called acceleration due to gravity. It is denoted by the letter g. Its SI unit is m/s². On the surface of the earth, …

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