Among halogens the highest boiling point is of___________________?

A. Flrorine
B. Chlorine
C. Bromine
D. Iodine

In modern periodic table all the leements are arranged in ascending order of__________________?

A. Valency
B. Atomic mass
C. Atomic number
D. Valence electrons

Inner transition elements are called _________________?

A. Lanthanides
B. Actinides
C. Rare earth metals
D. All

Non-metals usually form _________________ oxides?

A. Acidic
B. Amphoteric
C. Neutral
D. All of the above

Best position of hydrogen in the periodic table is above I.A Group which is mainly due to_______________?

A. Both are electropositive
B. Similar outer most shell electronic configuration
C. Both form ionic compounds
D. All

Which one of the following sets consists of all coinage metals ?

A. Cu hg au
B. Cu ag au
C. Ag au hg
D. Cu fe au

For determining the order of reaction we use__________________?

A. Refractometric method
B. Dilatometric method
C. Optical activity method
D. Half life method

Elements in the same vertical group of the periodic table have same_______________?

A. Number of valence electrons
B. Atomic number
C. Atomic mass
D. Atomic volume

Which of the p-block elements are not representative elements ?

A. Alkali metals (i-a)
B. Group-14 elements (iv-a)
C. Group-18 elements (viii-a)
D. Halogens (vii-a)

Which of the following will not form crystalline structure with opporitely charged ions_________________?

A. H+
B. H-
C. Mg2+
D. Ca2+