Std-10 Most Imp Ch 4 Gseb L-5

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

A buffer solution of pH value 4 is to be prepared, using CH_(3)COOH and CH_(3)COONa .How much amount of sodium acetate is to be added to 1.0L of M//10 acetic acid? (K_(a) = 2.0 xx 10^(-5))

0.1mol of CH_(3)NH_(2) (K_(b) = 5 xx 10^(-4)) is mixed with 0.08mol of HCI and diluted to 1L . Which statement is correct?

The weight of CH_(3)COONa needed to add in 1 litre N/10 CH_(3)COOH to obtain a buffer solution of pH value 4 is ( Given K_(a) = 1.8 xx10^(-5) )

The weight of CH_(3)COONa needed to add in 1 litre ( N )/( 10 ) CH_(3) COOH to obtain a buffer solution of pH value 4 is ( Given K_(a) = 1.8 xx 10^(-5) )

List two most common STDs.

In the reaction, CH_(3)COOHoverset(L(A)H_(4))rarrAoverset(PC_(5))rarrBoverset(A//C.NOH)rarrC, the product C is :-

Most common bacterial STD is:

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: