A. >7
B.
C. 7
D. 14
Bauxite is boiled with aqueous NaOH solution. Sodium meta aluminate solution is formed. This part in the metallurgy of aluminium is called
A mixture of Boran trichloride and hydrogen is subjected to silent electric discharge to form ’A’ and HCl. ’A’ is mixed with NH3 and heated to 2000 C to form B. The formula of B is
Ethylene reacts with Br2 in CCl4 to from X. When X is reacted with alcoholic KOH. Y is formed. Here X and Y are
The molar concentrations of A,B and C at equilibrium for the reaction A+2B⇔3C are 2,3 and 4 moles/lit respectively. Its Kc is
Which of the following is obtained in carbyl amine reaction from aniline
The magnetic oxide of iron is
The froth floatation process is used for the concentration of
A moving electron has 4.55 x 10-25 joules of kinetic energy. The wavelength of the electron is (mass = 9.1 x 10-31 kg and h = 6.6 x 10-34 kg m2 sec-1)
For the reaction A(g)⇔B(g)+C(g),Kp at 4000C is 1.5x10-4 and Kp at 6000C is 6x10-3 Then the incorrect statement is
The ratio of radii of first orbits of H, He+ and Li+2 i