A. Boron & Beryllium
B. Nitrogen & Phosphorous
C. Magnesium & Aluminium
D. Gallium & Helium
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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. 18 Submitted by: Muhammad Ali Kunbhar...
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