521. Selection of filter paper depends on size of particles to be________________?
A. filtered
B. dried
C. decolorized
D. decanted

522. Which is not a sublime material_______________?
A. Iodine
B. Benzoic acid
C. Ammonium chloride
D. Potash alum

523. Shaking two immiscible liquids increases_________________?
A. Length of contact
B. Volume of contact
C. Area of contact
D. all of above

524. 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

525. Which type of bond is formed by overlap of p orbitals _______________?
A. Pi
B. Sigma
C. Both
D. Neither

526. The octet rule does not always hold for which of the following elements _________________?
A. C
B. O
C. F
D. P

527. 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

528. Which one is not the absolute term of the element _________________ ?
A. Ionization energy
B. Electron affinity
C. Electro negativity
D. Atomic size

529. In O2 each oxygen atom is hybridized_________________?
A. sp3
B. sp2
C. sp
D. All

530. Measurement of the degree of polarity is___________________?
A. Electron affinity
B. Ionic character
C. Ionization energy
D. Dipole moment