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)
An alkene X on ozonolysis gives a mixture of Propan-2-one and methanal. What is X?
Which of the following can form iconic micelles in water?
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)
The hybrids of which group elements of the periodic table form electron precise hybrids?
R is one of the monomers for the formation of a polymer called
The following molecule with the structure acts as
The common name of benzene -1, 3- diol is
The aromatic compound/species with maximum number of x - electrons is
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
Arrange the following in the correct order of their reactivity towards nucleophilic addition reactions
According to MO theory, the molecule which contain only π-Bonds between the atoms is
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)
Which one of the following has the same number of atoms as are in 6g of H2O
The ore which is purified by leaching process is:
In which if the following changes there is no change in hybridization of the central atom?
Ziegler-Natta Catalyst is used in the manufacture of
Aluminum reacts with dilute HCL and liberates a gas 'A' and with aqueous alkali liberates a gas 'B'. A and B respectively are
The number of significant figures in the measurement of a length 0.079000 m is:
At very high frequencies, the current (i) in the given circuit is:
Among the following statements, the correct statement for a wave is:
N molecules each of mass m of gas A and 2N molecules each of mass 2m of gas B are contained in a vessel which is maintained at a temperature T. The mean square velocity of the molecules of gas B is denoted by V22 and the mean square of the x-component velocity of the molecules of gas B is denoted by V12, then V1\V2 is:
An engine is dragging a mass of 5000 kg with a velocity of 5 ms-1 along a smooth inclined plane of inclination 1 in 50. Then the power of the engine is
Photodiodes are mostly operated in reverse biased conditions because:
