1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
A
Paschen series
B
Brackett series
C
Lyman series
D
Balmer series
2
NEET 2019
MCQ (Single Correct Answer)
+4
-1
4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is :
A
6p > 5f > 4d > 5p
B
5f > 6p > 4d > 5p
C
5f > 6p > 5p > 4d
D
6p > 5f > 5p > 4d
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
Which one is a wrong statement?
A
Total orbital angular momentum of electron in s-orbital is equal to zero.
B
An orbital is designated by three quantum numbers while an electron in an atom is designated by four quantum numbers
C
The electronic configuration of N atom is NEET 2018 Chemistry - Structure of Atom Question 11 English Option 3
D
The value of m for dz2 is zero.
4
NEET 2017
MCQ (Single Correct Answer)
+4
-1
Which one is the wrong statement ?
A
The uncertainty principle is

$$\Delta E \times \Delta t \ge {h \over {4\pi }}$$
B
Half filled and fully filled orbitals have greater stability due to greater exchange energy, greater symmetry and more balanced arrangement.
C
The energy of 2s-orbital is less than the energy of 2p-orbital in case of hydrogen like atoms.
D
de-Broglie's wavelength is given by

$$\lambda = {h \over {mv}}$$, where m = mass of the particle,

v $$=$$ group velocity of the particle.
NEET Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12