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CBSE / Chemistry Questions

Total Questions 1082
AN OBJECT OF MASS 100kg IS ACCELERATED UNIFORMILY FROM A VELOCITY OF 5 m s-1 TO 8 m s-1 IN 6s.CALCULATE THE INITIAL AND FINAL MOMENTUM OF THE OBJECT.ALSO,FIND THE MAGNITUDE OF THE FORCE EXERTED THE OBJECT.
AN OBJECT OF MASS 100kg IS ACCELERATED UNIFORMILY FROM A VELOCITY OF 5 m s-1 TO 8 m s-1 IN 6s.CALCULATE THE INITIAL AND FINAL MOMENTUM OF THE OBJECT.ALSO,FIND THE MAGNITUDE OF THE FORCE EXERTED THE OBJECT.
what is alum? what are its uses?
What is a pure substance?
structure of calcium hemihydrate?
whether distilled water is neutral?
why HCl,HNO3 show acidic nature in aqueous solution whereas alcohol,glucose does not?
The rate of diffusion increases with temperature. why?
what is the smelling substance in LPG?
What is ethanol ?
Explain why; (a)An antacid tablet when you suffer from acidity?
WHAT DOES A FORMULA REPRESENT
dil.HCL+Mg=?
IN p-block 13 group why oxidation state +5 decreases down the group
both smoke and fog are areosols.but how do they differ.
what is emultion?give example.
name the components of a colloidal solution. define them.
name the technique used to seperate the compound of a colloidal solution.
can tyndall effect be distiguish a colloidal solution from a true solution. why?
how we get balanced the chemical equation