A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
Related Mcqs:
- Melting points of VII-A group elements down the group ____________________?
A. Increase
B. Decrease
C. Remain constant
D. No regular trend - 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 represents the correct electronic configuration of VII A group elements in the ground state ?
A. ns2p2
B. ns2p4
C. ns2p5
D. ns2p6 - 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 one of the following pairs shown diagonal relationship in the periodic table ?
A. Sodium and Lithium
B. Lithium and magnesium
C. Lithium and beryllium
D. Boron and Beryllium - Elements of group IA IIA are _________________?
A. Electronegative
B. Electropositive
C. Neutral
D. IA is electropositive while IIA is electronegative - Group VIB of transition elements contains___________________?
A. Zn Cd Hg
B. Fe Ru Os
C. Cr Mo W
D. Mn Te Re - Boron is non metal while other elements of IIIA group are metals. This is because______________?
A. it has small size
B. it has high nuclear charge
C. it forms molecular addition compounds
D. all of the above - All the elements in group VIA are ___________________ in nature?
A. hygroscopic
B. metals
C. polymeric
D. all of above - Which group contains elements that exist as monoatomic molecule?
A. 1
B. 2
C. 14
D. 18Submitted by: Muhammad Ali Kunbhar
