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metals iron, aluminium, copper, gold, etc. have great industrial significants. which are their important ores? important alloys of iron, aluminium and copper and their uses.
introduction of chemical bond
If molecular mass and atomic mass of sulphur are 256 and 32 respectively, its atomicity is: (1) 2 (2) 8 (3 )4 ( 4)16 Ans: 8
Upward and downward pressure are the same at any given depth Get a glass cylinder at least 15 cm long and 4 cm in diameter. Such a length of tube can be made from a straight-si
Glucose and fructose are epimers so they are differ in their second carbon position and remaining is same so when they react with phenylhydrazeen they give same osazone
Physical chareterstics of carbonyl compounds Physical state: a. Methanal is a pungent smell gas. b. Ethanal is a volatile liquid and boiling points 294 K. c. Other ald
Which of the following expressions gives the de-Broglie relationship: (1) h= γ/ mv (2) γ= h/mv (3) γ=m/ mv
Depression in freezing point - Physical methods for Non-volatile substances Mol. Mass = (1000 K f * w) /W* ΔT Where, K f stands for Molal depression constant of the solve
How much time a hydrogen electron will take when it goes from first orbit to second orbit?
factors that influence ionic migration
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