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CBSE / Chemistry Questions

Total Questions 1082
Magnesium in plants are found in ............... form.?
(activity 4.6 table 4.5 page no 49) details are to be filled up for reaction of metals and non metals with acids. please help
why is phosphorous stored underwater?
why is phosphorous stored underwater?
Why is fission don't done in metal's with small atomic mass
why is phosphorous stored underwater?
brief note on "conservation of petroleum products"
Give a brief note on the subject: "Conservation of Petroleum Products".
what is electrolytic decomposition? give examples, give the balancing equations for electrolytic decomposition of sodium chloride and molten aluminium oxide?
define metallurgy
differentiate between roasting and calcination with an example
What are the uses of coal gas
What are the uses of coal gas
What is bitumen
Suboxide formulas of all elements.
What is destructive distillation
my question is based on table 4.4 in page no 48 science text. sl. no 2, 3, 4, 5 is to filled up with name of the base and metal and name of the acid and non metal
Iron(Fe) + Oxygen(O2) + water(H2O) = ? Magnesium(Mg) + Oxygen(O2) = ?
whether copper is shiny or dull and very hard or not very hard?
whether sulphur is shiny or dull and hard or not very hard material?(reference table 4.1 in text)