- The maximum number of electrons which can be present in a subshell can be represented by?
a) 2l + 1
b) 2n2
c) 4l + 2
d) 4l – 2 - The Schrodinger wave equation is?
a) Non linear differential equation
b) linear differential equation
c) 1st order equation
d) All of these - In Sendmeyer, reaction, which of the following is not a Chlorinating agent?
a) Thionyl Chloride
b) Sulfuryl Chloride
c) Phosphorus Chlorides
d) None of the mentioned - Which medium is used in the benzylic acid rearrangement reaction?
a) Neutral
b) Strong basic
c) Mild acidic
d) Strong acidic - Gattermann reaction is given by:?
a) Benzene
b) Toluene
c) Cholorobenzene
d) None of these
66-Which of the following will not undergo Friedel-Craft’s reaction readily?
a) Toluene
b) Xylene
c) Cumene
d) Nitrobenzene
67- Under which temperature, with a mild catalyst does toluene oxidize to benzaldehyde??
a) High
b) Moderate
c) Low
d) None of these
68- which of the following is the most activating in electrophilic aromatic substitution?
a) -NH2
b) -NO2
c) -CN
d) -NHCOCH3
- Which of the following is an application of thermodynamics?
a) Refrigerators
b) Gas compressors
c) Power plants
d) All of the mentioned - What is the value of the absolute thermodynamic temperature scale?
a) 3K
b) 0K
c) 1K
d) 4K - Find the volume of O2 required to burn 1 L of propane completely, measured at 0℃ temperature and 1 atm pressure?
a) 10 L
b) 6 L
c) 5 L
d) 7 L - A gas X has Cp and Cv ratio as 1.4, at NTP 11.2 L of gas X will contain_______ number of atoms?
a) 6.02 × 1023
b) 1.2 × 1023
c) 3.01 × 1023
d) 2.01 × 1023 - 6 gms of magnesium (atomic weight = 24), reacts with excess of an acid, the amount of H2 produced will be __ gm.?
a) 0.5
b) 1
c) 3
d) 5 - The electronic spectra in the visible range span is __?
a) 25000-72000 cm-1
b) 12500-25000 cm-1
c) 25000-50000 cm-1
d) 15000-30000 cm-1
75.Arrange the various electronic transitions in the order of increasing energy.?
a) n→σ* < π→π* < n→π* < σ→σ*
b) n→σ* < n→π* < π→π* < σ→σ*
c) n→π* < π→π* < n→σ* < σ→σ*
d) σ→σ* < π→π* < n→π*
- Which of the following cannot show a vibrational absorption spectrum?
a) OCS
b) H2O
c) CO2
d) CH2 = C H2 - Which one of the following compound forms salt on reaction with NaNH2?
a) C2H2
b) C2H6
c) C6H6
d) C2H4 - Choose the process by which liquid hydrocarbons can be converted to gaseous hydrocarbons?
a) hydrolysis
b) oxidation
c) cracking
d) distillation under reduced pressure - Cooking gas is a Mixture of following two gases?
a) methane and ethane
b) Ethane and Propane
c)Propane and Butane
d)Butane and Pentane
80.Which of following fuel has highest calorific value?
a) Methane
b) Kerosene
c) Hydrogen
d) LPG
