811. Which of the following always increases on going from top to bottom in a group?
A. Metallic character
B. Electronegativity
C. Oxidizing power
D. Tendency to get reduced
812. Among halogens the highest boiling point is of __.
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine
813. Which assertion is incorrect?
A. All metals are good at transferring electricity;
B. All metals are good at transferring heat;
C. All metals produce positive ions;
D. All metals produce acidic oxides
814. A fundamental framework for studying elements in relation to their __ is provided by the periodic table.
A. Physical Properties
B. Chemical Properties
C. Properties of their compounds
D. All of them
815. Elements with similar chemical properties appear in the __.
A. Same Family
B. Same Period
C. P Block elements
D. Right Upper corner
816. The longest period in the modern periodic table is _.
A. 6th
B. 7th
C. 8th
D. 9th
817. Hydrogen resembles with carbon because of having _.
A. Same number of electrons in the valence shell
B. Similar physical state
C. Remarkable reducing properties
D. Homovalent ( Shows same valency)
818. The 1HNMR spectrum of ferrocene at room temperature shows?
A. A singlet
B. A doublet
C. A triplet
D. A quintet
819. The isomer shift in Mossbauer spectra depends upon?
A. s-electron density
B. p-electron density
C. d-electron density
D. None of the above
820. Non-heme iron-sulfur proteins are involved in?
(A) Proton transfer
B. Electron transfer
(C) Both oxygen transfer and proton transfer
(D) Oxygen transfer
Admin