Practice free NEET NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which of the following has the highest electron affinity?
O>Na>O->F-
F negative ion is having 8 electrons so, it doesn't need any further electron.
o- has 7 electron , but presence of -ve charge will reduces E.A
Which of has the largest size?
Li+(aq) has largest size due to high hydration
The screening effect of d-electrons is :
Size of the orbital order are s < p < d < f, as the size of the orbital decreases screening effect increases
Values of electronegativity like 3.0, 2.8, 2.5 are related to :-
Maximum IP Noble gas
Max.EA halogens
EN of CI = 3
EN of Br = 2.8
EN of I = 2.5
According to Gallis, Hanny and Smith 50% ionic character and 50% covalent character in a molecule is related to :-
According to Gallis EN = 1.7
According to Henry and Smith EN = 2.1
In scandium series, maximum distance between neutrons containing site and valence shell is of :-
in 3d series, Sc has maximum radius.
Which of the following compound is isoelectronic with adduct of "Diborane and Ammonia" is :-
H3N B2H6 contain 18 electron
H2O2 = 18 electron
Which of the following ionisation energy order is NOT correct :-
IE ∝ O.S.
Which of the following would not proceed in the forward direction spontaneously?
IP of Cl>IP of Si.
Increasing order of the ionic radii and decreasing order of number of protons of the given isoelectronic species is :-
for ISOELECTRONIC species, atomic size is 1/number of proton
Ready to ace NEET?
Free access · No credit card required
Yes. You can attempt every NEET question on this page for free without logging in, and check the correct answer with a detailed explanation instantly.
No account is required to attempt questions and view answers. A free account adds bookmarks, personal notes, and progress tracking.
The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.