1. p-block has 6 columns because a maximum of 6 electrons can occupy all the orbitals in a p-subshell
2. d-block has 8 columns because a maximum of 8 electrons can occupy all the orbitals in a d-subshell
3. Each block contains a number of columns equal to the number of electrons that can occupy that subshell
4. Each block indicates value of azimuthal quantum number (l) for the last subshell that received electrons in building up the electronic configuration
d-block has 8 columns because a maximum of 8 electrons can occupy all the orbitals in a d-subshell
1. 0.11
2. 0.90
3. 1.0
4. 1.11
1.0
1. Only mass
2. Only charge
3. No mass, no charge
4. Mass and charge both
Mass and charge both
1. Temperature
2. Density
3. Volume
4. Both B and C
Density
1. The spectrum of only hydrogen atom.
2. The spectrum of only hydrogen molecule.
3. The spectrum of an atom or ion containing only one electron
4. The spectrum of any element
The spectrum of an atom or ion containing only one electron
1. Dalton
2. Aristotle
3. Ptolemy
4. Democritus
Democritus
1. Vapour pressure liquid
2. Surface tension of liquid
3. Viscosity of liquid
4. All of these
Surface tension of liquid
1. +4
2. +8
3. +5
4. +6
+8
1. Ca(OH)2+2HCl→ CaCl2+2H2O
2. BaCl2+MgSO4→ BaSO4+MgCl2
3. 2S2O72-+2H2O→4SO42-+4H+
4. Cu2S+2FeO→2Cu+2Fe+SO2
Cu2S+2FeO→2Cu+2Fe+SO2
1. Bronsted
2. Svante
3. Einstein
4. Mendeleev
Bronsted