Which one of the following has polar covalent bond ?
A. HF
B. CH4
C. H2
D. N2
Chemistry Mcqs
Bond will beionic when E.N difference of bonded atom is ____________________?
Bond will beionic when E.N difference of bonded atom is ____________________?
A. Equal to 1.7
B. Greater than 1.7
C. Less than 1.7
D. No specificity exists
Ionic bond is produced after complete transfer of ________________ ?
Ionic bond is produced after complete transfer of ________________ ?
A. Nucleus
B. Neutrons
C. Electrons
D. Protons
In a period electronegativity from left to right_________________?
In a period electronegativity from left to right_________________?
A. Increases
B. Decreases
C. Remain constant
D. Variable trend
Elements having high I.P values are____________________?
Elements having high I.P values are____________________?
A. Metals
B. Non metals
C. Liquids
D. Solids
Ionization energy in a period generally ___________________?
Ionization energy in a period generally ___________________?
A. Increases
B. Decreases
C. No change
D. Variable trend
In a group ionic radius ?
In a group ionic radius ?
A. Increases
B. Decreases
C. No change
D. Variable trend
An atom loses or gains electrons to__________________?
An atom loses or gains electrons to__________________?
A. Gain stability
B. Form a bond
C. Complete its outermost shell
D. all are accurate justifications
nergy of atom in compound is___________________?
nergy of atom in compound is___________________?
EA. Higher than individual
B. Lesser than individual
C. No change
D. Impossible to predict
Which of the following have their outer most shell complete in atomic form ?
Which of the following have their outer most shell complete in atomic form ?
A. Noble gases
B. Alkali metals
C. Coinage metals
D. Gun metals