Chemistry Quiz

Splitting of spectral lines in an electric field is called ----

• Zeeman effect

• Shielding effect

• Compton effect

• Stark effect

The magnetic quantum number decides---

• the distance of the orbital from the nucleus

• the shape of the orbital

• the orientation of the orbital in space

• the spin of the electron

2p orbitals have ----------

• n=1, l =2

• n=1, l=0

• n=2, l=0

• n=2, l=1

The maximum number of electrons in a sub shell is given by the expression

The total number of orbitals associated with the principal quantum number n = 3 is

• 9

• 8

• 7

• 5

If the value of principal quantum number is 3, azimuthal values are ---

• 0,1

• 0,1,2

• 1,2

• 1,2,3

The atomic number of an element is 17 and its mass number is 37. The number of proton, electrons and neutrons present in the neutral atom are ----

• 17, 37, 20

• 20, 17, 37

• 17, 17, 20

• 17, 20, 17

The maximum number of electrons that can be accommodated in the n^th level is

• n²

• n+1

• n – 1

• 2n²

Number of spherical nodes in 2s orbital is ---

• 1

• 2-1

• 3

• n-1

de Broglie equation is ---

• λ = mv/h

• λ = hmv

• λ = hv/m

• λ= h/mv