A. CaSiO3
B. FesSio3
C. Ca3(PO4)2
D. MnSiO3
The time for half life of a first order reaction is 1 hour. What is the time taken for 87.5% completion of the reaction
For the reaction H2(g)+I2(g)⇔2HI(g) at 721 K,the value of equilibrium constant KC is 50.The value of KP under the same conditions will be
Which of the following brings about dry bleaching
148mg of Ca(OH)2 is required to remove hardness of one lit. of hard water by Clarke’s process. If hardness is due to only calcium bicarbonate, what is the degree of hardness of sample of water?
The addition of HCl will not suppress the ionization of
The weakest acid among the following is
Ultrapure elements are obtained in the following method of metal refining
In dry cell cathode is
Three faradays of electricity are passed through molten Al2O3, aqueous solution of CuSO4 and molten NaCl taken in three different electrolytic cells. The amount of Al,Cu and Na deposited at the cathodes will be in the ratio of
Order of boiling points