In a period the atomic radius ?
A. Increases
B. Decreases
C. Remain same
D. First decreases then increases
Chemistry Mcqs
Force responsible to hold atoms together in a compound is called ________________?
Force responsible to hold atoms together in a compound is called ________________?
A. Bond
B. Attractive force
C. Interaction
D. All of above represent same entity
A specie with maximum number of unpaired electrons ?
A specie with maximum number of unpaired electrons ?
A. F
B. H2O
C. HF
D. NH-2
Measurement of the degree of polarity is___________________?
Measurement of the degree of polarity is___________________?
A. Electron affinity
B. Ionic character
C. Ionization energy
D. Dipole moment
In O2 each oxygen atom is hybridized_________________?
In O2 each oxygen atom is hybridized_________________?
A. sp3
B. sp2
C. sp
D. All
Which one is not the absolute term of the element _________________ ?
Which one is not the absolute term of the element _________________ ?
A. Ionization energy
B. Electron affinity
C. Electro negativity
D. Atomic size
Which of the following is the best explanation that CO2 is non polar molecule __________________?
Which of the following is the best explanation that CO2 is non polar molecule __________________?
A. Linear geometry
B. Dipole moment is zero
C. Sp hybridization
D. None
The octet rule does not always hold for which of the following elements _________________?
The octet rule does not always hold for which of the following elements _________________?
A. C
B. O
C. F
D. P
Which type of bond is formed by overlap of p orbitals _______________?
Which type of bond is formed by overlap of p orbitals _______________?
A. Pi
B. Sigma
C. Both
D. Neither
The ionization energy__________________?
The ionization energy__________________?
A. Generally increases from left to right in a period
B. Does not change in a period
C. Increase from top to bottom in a group
D. Does not change in a group