821. The splitting occurs in the Mossbauer spectrum due to asymmetric environments; it is called?
A. Quadrupole splitting
B. Zeeman splitting
C. Doppler’s splitting
D. Zero field splitting
822. The molecule which shows some common lines in the IR and Raman spectra is?
(A) CO2
(B) CS2
C. N2O
(D) H2
823. The energy of the rotational level with J=10, in wave number cm-1 unit is?
A. 2 B
B. 110 B
C. 10 B
D. 220 B
824. The number of IR active bands in H2O molecule is?
(A) 1
(B) 2
C. 3
(D) 4
825. All of the following are different uses of hydrogen peroxide except?
(A) Used as a bleaching agent
(B) Used to deodorize sewers
C. Used as fuel in space
(D) Used to prepare organic peroxides
826. The insoluble impurities in the saturated solution are removed by_______.
A. Normal Filter Paper
B. Fluted Filter Paper
C. Both A & B
D. None
827. After filtration, slow cooling yields _.
A. Bigger & Pure Crystals
B. Bigger & Impure Crystals
C. Smaller & Pure
D. Smaller & Impure
828. The crystals are drying through a _.
A. Vacuum Pump
B. Direct providing heat
C. Vacuum desiccator
D. None
829. Which one is not the drying agent?
A. CaCl2
B. CaOCl2
C. Silica Gel
D. Phosphorus penta-Oxide
830. The colored impurities are removed from the crystallized substances by _.
A. Cooling
B. Aeration
C. Boiling
D. Heating
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