A. 1
B. 2
C. 14
D. 18
Submitted by: Muhammad Ali Kunbhar
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Related Mcqs:
- The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________?
- A. Dipole-dipole forces B. Ion dipole-dipole forces C. London dispersion forces D. Debye forces...
- 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)...
- Introduction of nitro group in a molecule is called___________________?
- A. nitration B. halogenation C. sulphonation D. amination...
- Seventh period contains _________________ normal elements ?
- A. 2 B. 4 C. 6 D. 8...
- Elements of group IA IIA are _________________?
- A. Electronegative B. Electropositive C. Neutral D. IA is electropositive while IIA is electronegative...
- In which of the following pairs are elements belonging to the same group ?
- A. Boron & Beryllium B. Nitrogen & Phosphorous C. Magnesium & Aluminium D. Gallium & Helium...
- 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 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...
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