- (A) Al-Razi
- (B) Moseley
- (C) Dobereiner
- (D) Democritus
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- (A) Flrorine
- (B) Chlorine
- (C) Bromine
- (D) Iodine
- (A) Metallic character
- (B) Electronegativity
- (C) Oxidizing power
- (D) Tendency to get reduced
- (A) Group IA
- (B) Group IB
- (C) Group VIIA
- (D) Group VIII
- (A) O-2
- (B) H+
- (C) Cl-
- (D) Na+
- (A) Cr
- (B) Mn
- (C) Sn
- (D) O
- (A) MnO < MnO2 < Mn2O7
- (B) Mn2O7 > MnO2 > MnO
- (C) MnO2 > MnO > Mn2O7
- (D) MnO2 > Mn2O7 > MnO
- (A) Nuclear charge
- (B) Atomic size
- (C) Shielding effect
- (D) I.E depends upon all of the above and nature of orbital
- (A) Hard water
- (B) Heavy water
- (C) Soft water
- (D) Water gas
- (A) Ionization energy
- (B) Atomic radii
- (C) Melting & boiling points
- (D) Atomic volume
