Structure of Atom Chemistry NEET Practice Questions
1 / 25
The spectrum of He is expected to be similar to that
2 / 25
Which one of the following is not isoelectronic with O2–?
3 / 25
According to the law of photochemical equivalence the energy absorbed(in ergs/mole) is given as (h = 6.62 × 10–27 ergs, c = 3 × 1010 cm s–1, NA = 6.02 × 1023 mol–1)
4 / 25
Which series in the spectrum of hydrogen atoms falls in the visible region?
5 / 25
An electron's energy in the hydrogen atom's nth Bohr orbit equals
6 / 25
For given energy, E = 3.03 × 10–19 joules corresponding wavelength is (h = 6.626 × 10–34 J sec, c = 3 × 108 m/sec)
7 / 25
If Planck’s constant is 6.63 × 10–34 Js, the speed of light is 3 × 1017 nm s–1 and the frequency is 6 × 1015 s–1, then the closest value of wavelength will be
8 / 25
The hydrogen atoms (n = 1) Bohr orbit radius is roughly 0.530. The first excited state's (n = 2) orbit's radius is (in units)
9 / 25
Which ion is isoelectronic with Be2+?
10 / 25
The value of Planck’s constant is 6.63 × 10–34 J s. The velocity of light is 3.0 × 108 m s–1. Which value is closest to the wavelength in nanometers of a quantum of light with a frequency of 8 × 1015 s–1?
11 / 25
Which of the following transitions in the hydrogen atom will result in the least energy photon, according to the Bohr theory?
12 / 25
Which ion is isoelectronic with CO
13 / 25
A hydrogen atom's radius in its ground state is 0.53. The Li2+ ion's (atomic number = 3) radius in a similar state is
14 / 25
An electron in the second Bohr orbit of a hydrogen atom has a de Broglie wavelength of [Assuming that Bohr radius, a0 = 52.9 pm].
15 / 25
How much energy will be released or absorbed when an electron hops from n = 1 to n = 3 in Bohr's concept of an atom?
16 / 25
If r is the radius of the first orbit and n is the number of orbits, then
17 / 25
A ball weighing 0.66 kg is moving at a speed of 100 m/s. The related wavelength is going to be (h = 6.6 × 10–34 J s)
18 / 25
What will be the longest wavelength line in the Balmer series of spectra?
19 / 25
How many protons, neutrons, and electrons are in Lu
20 / 25
If the energy of the hydrogen atom's second Bohr orbit is -328 kJ mol-1, the energy of the fourth Bohr orbit would be
21 / 25
Isoelectronic species are
22 / 25
Who modified Bohr's theory by adding elliptical orbits for the electron path?
23 / 25
Calculate the energy of light if the wavelength of light is 45 nm. (Planck’s constant, h = 6.63 × 10-34J s, speed of light, c = 3 × 108 m s–1)
24 / 25
Assuming that the hydrogen atoms electron has an ionization energy of 2.18 10-18 J atom-1 and a heat capacity of 6.626 10-34 J s, the frequency of radiation released when the electron moves from position n = 4 to n = 1 will be.
25 / 25
The initial excited state of a hydrogen atom has an energy of -3.4 eV. then confirm the K.E. of the identical hydrogen atom orbit.
Your score is
The average score is 36%
Share Your Result
Restart quiz
Unlock the doors to success with a premier chemistry academy. Explore our top-notch education, experienced instructors, and a bright future in chemistry.