A current of 15.0 amperes is passed through a solution of CrCl2, for 45 minutes. The volume of Cl2 , (in I) obtained at the anode at 1 atm and 273 K is around (IF=96500 Cmol-1, At. wt. of Cl=35.5, R=0.082 L-atmK-1 mol-1)
The number of electrons with (n+1) values equal to 3,4 and 5 in an element with atomic number (z) 24 are respectively (n = principal quantum number and l = azimuthal quantum number)
Which one of the following has the same number of atoms as are in 6g of H2O
Arrange the following in the correct order of their reactivity towards nucleophilic addition reactions
The rate of diffusion of a gas A is √5 times more than of gas B. If the molar mass of A is x gmol-1, the molar mass of B ( in g mole-1) is
Among the following the incorrect statement about transition metals is
An alkene X on ozonolysis gives a mixture of Propan-2-one and methanal. What is X?
The formula of a metal oxide is M0.96 O1. The fractions of metal that exists as M3+and M2+ ions in that oxide are respectively
Match the following : List -I (Atomic number) List II (Group number and period number)
List -I (Atomic number)
List II (Group number and period number)
According to MO theory, the molecule which contain only π-Bonds between the atoms is
In which if the following changes there is no change in hybridization of the central atom?
Identify the correct statement about the oxidation states of group 14 elements
At 50 °C, the vapour pressure of pure benzene is 268 torr. The number of moles of non-volatile solute per mole of benzene required to prepare a solution having a vapour pressure of 167 torr at the same temperature is
The alkali metal with the lowest E M- M+ (V) is X and the alkali metal with highest E M- M+ is Y. Then X and Y are respectively:
Which of the following can form iconic micelles in water?
The rate law for the decomposition of hydrogen iodide is - = d[HI]/dt = k[HI]2. The units of rate constant k are:
The ore which is purified by leaching process is:
Aluminum reacts with dilute HCL and liberates a gas 'A' and with aqueous alkali liberates a gas 'B'. A and B respectively are
Match the following List -I (Complex) List II (Spin only Magnetic Moment)
the correct answer is:
The common name of benzene -1, 3- diol is
R is one of the monomers for the formation of a polymer called
The hybrids of which group elements of the periodic table form electron precise hybrids?
For the reaction at 25° C, X2O4 (l) → 2XO2(g), U and S are 2.1 K.Cal and 20 Cal/K respectively. what is G for the reaction at the same temperature? (R = 2 CAL K-1MOL-1)