2 gm of a base whose equiv wt. is 40 reacts with 3 gm of an acid. The equiv wt. of the acid is -

0.84 gms, of metal hydride contains 0.04 gms of hydrogen. The equivalent wt. of metal is.

1.5 gm of divalent metal displaced 4 gm of copper (at. wt. = 64) from a solution of copper sulphate. The atomic weight of the metal is-

34.2 gm Sucrose (Molecular wt 342) is dissolved in 1000 gm of water. Find the freezing-point of the solution kf = 1.86 K Kg mol^-1

46 gms of ethyl alcohol is dissolved in 18 gms of water. Calculate the mole fraction of ethyl alcohol. (At. wt of C = 12, 0 = 16, H= 1).

On analyisis, 0.2 gm of a monobasic acid gave 0.505 gm of CO_2 and 0.0864 gm of H_2O.0.305 gm of this acid required 25ml of (N)/(10)NaOH for complete neutralisation. Find the molecular formula of the acid.

A force of 100 gm wt. is required to pull a body weighing 1 kg over ice. The coefficient of friction is