In Periodic Table, the basic character of oxides
increases from left to right and decreases from top to bottom
decreases from right to left and increases from top to bottom
decreases from left to right and increases from top to bottom
decreases from left to right and increases from bottom to top
C.
decreases from left to right and increases from top to bottom
On moving along a period, the tendency to lose electrons decreases and thus, the metallic character decreases. Since, the oxides of non-metals are acidic. Thus it can be said, along a period from left to right basic character decreases while on moving downward, basic character increases due to increase in metallic character.
Which one of the following contains P-O-P bond?
Hypophosphorus acid
Phosphorus acid
Pyrophosphoric acid
Orthophosphoric acid
Which of the following orbitals will have zero probability of finding the electron in the yZ plane.
px
py
pz
dyz
Which of the following orders regarding ionisation energy is correct?
N > O > F
N < O < F
N > O < F
N < O < F
Which of the following compounds shows evidence of the strongest hydrogen bonding?
Propan-1-ol
Propan-2-ol
Propan-1,2-diol
Propan-1,2,3-triol
A weak acid of dissociation constant 10-5 is being titrated with aqueous NaOH solution. The pH at the point of one-third neutralisation of the acid will be
5 + log 2 - log 3
5 - log 2
5 - log 3
5 - log 6