26
The law of constancy of interfacial angle is called :
Answer
C. Steno's law
27
Which of the following complex ions would have the smallest crystal field splitting?
Answer
D. [Co(NH3)6]2+
28
A plot of log[A] Vs time(t) gives a straight line with negative slope. The order of the reaction is :
Answer
B. 1
29
The nature of electronic spectra of 'd' block elements is mainly due to :
Answer
A. Incomplete d-orbitals
30
How many Bravais lattices can exist in nature?
Answer
C. 14
31
How many ESR lines are observed if an unpaired electron when closed to two non-equivalent protons is placed in magnetic field?
Answer
B. 4
32
For which one of the following process is inter system crossing (ISC) essential?
Answer
D. Phosphorescence
33
The molecules of H2O belongs to the point group :
Answer
C. C2V
34
Which one of the following types of bonding is true for ferrocene?
Answer
B. Delocalised Fe-C bond
35
What is the effect of hydrogen bonding on the IR absorption of N-H group?
Answer
A. It shifts to lower wave number
36
A symmetry element which distinguishes maleic acid from fumaric acid is :
Answer
A. C2
37
How many hyperfine lines in ESR spectrum are shown by Mn2+?
Answer
A. 6
38
A is the stereoisomer of the compound B, Therefore A and B differ in their :
Answer
C. Configuration
39
The hybridization of the central carbon in allenes is :
Answer
D. sp
40
High quantum yields of photochemical reactions are due to :
Answer
B. Accompanying side reactions
41
What is the eigen value of sin2`x` which is not an eigen function of the operator ‘d/dx’ but of ‘d2/dx2’?
Answer
D. `-4`
42
In first order reaction `A_((g))` ```` `_(g)` `+C_((g))`, the initial pressure is 11200 Pa and half life period of the reaction is 29.93 min. What is the total pressure at the end of 16 minutes?
Answer
A. 14667 Pa
43
Predict the number of translational, rotational and vibrational degrees of freedom in neon :
Answer
C. 3, 0, 0
44
How many diastereomers are shown by the molecules `CH3CH=CHCH=CH-C2H5?`
Answer
B. 4
45
The term 'quantum mechanics' was first introduced by :
Answer
B. Max Born
46
Which of the following radiation has the longest wavelength?
Answer
D. Radio wave
47
Transmittance in spectroscopy analysis is a function primarily of the :
Answer
C. Velocity of light
48
Which of the following properties of transition metal complexes can be explained on the basis of crystal field theory?
Answer
D. Both (A) and (B)
49
Which of the following symmetry elements is not possessed by trans-dichlorobenzene?
Answer
C. S4
50
The number of vibrational degrees of freedom in toluene is :
Answer
A. 39
aswathy
2013 previous question paper for hsst chemistry