Which of the following order of basic strength is correct?
NH3 < NH2OH < HN3 < NH2-NH2
NH2OH <HN3 <NH2-NH2 <NH3
HN3 <NH3 <NH2OH <NH2-NH2
HN3 <NH2OH <NH2-NH2<NH3
B.
NH2OH <HN3 <NH2-NH2 <NH3
Basicity in nitrogen compounds is attributed to the availability of lone pair of electrons. The order of availability of e- pair on N-atom is
NH3 > NH2 NH2> HN3> NH2OH
Therefore, same is the order of basicity of these compounds.
A packet of colloidal system is taken in which colloidal particles are still. Two electrodes are taken in system and voltage is applied so that liquid medium moves under the influence of electric field. This phenomenon is called
electrodialysis
electroosmosis
electrophoresis
None of these.
A solid AB has NaCl type structure. The radius of A+is 100 pm. What is the radius of B-?
190.47
540.13
525
78.12
Crystalline solids have
short range order
long range order
anisotropic distribution
All of these.
How many electrons are de! ivered at the cathode during electrolysis by a current of 1 A in 60 seconds?
3.74 x 1020
6.0 x 1023
7.48 x 1021
6.0 x 1020