Std-10 Most Imp Ch 2 Gseb L-4

Valence Bond Theory -C.N.=6,all Possible Cases OF Para and dia in C.N.-4 and 6 (Most Imp) || Transfer OF Electron in Complex OF C.N. and C.N.-6

Which of the following should be most volatile? I) CH_3 CH_2 CH_2 NH_2 II) (CH_3)_3 N III) IV) CH_3 CH_2 CH_3

CH_4 (gas) is taken at (0.2)/(1.01325) atm pressure. Density of gas is 1.44 g//l and most probable speed is x xx10^2m//s , in the given condition. The value of x is:

List two most common STDs.

Most common bacterial STD is:

The heat librerated on complete combustion of 1 mole of CH_(4) gas to CO_(2)(g) and H_(2)O(l) is 890 kJ. Calculate the heat evolved by 2.4 L of CH_(4) on complete combustion.

Under identical conditions of pressure and temperature, 4 L of gaseous moxture ( H_(2) and CH_(4) ) effuses through a hole in 5 min whereas 4 L of a gas X of molecular mass 36 takes to 10 min to effuse through the same hole. The mole ratio of H_(2):CH_(4) in the mixture is: