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Rationalize the given observations: a) On going from Fe(CO)5 to Fe(CO)3(PPh3)2, absorptions in the IR spectrum at 2025 and 2000 cm-1 are replaced by bands at 1944, 1886 and 1881 cm-1.
Strained alkenes like cyclopropene or norbornene bind unusually strongly to metals. Recommend a reason why.
Draw the two singly occupied molecular orbital of the cycloheptatrienyl anion, [C7H7]–. Sketch alongside each of such singly occupied MOs the metal orbital with the right symmetry for a bonding
Metal alkoxides, such as metal alkyls, can as well β-eliminate. With this in mind:
Sketch the transition state for the first step in oxidative addition of a benzyl halide and a square planar complex ML4.
Draw a catalytic cycle for phosphine-rhodium-catalyzed hydroformylation. The catalyst precursor is:
Suggest a plausible mechanism for the following reaction:
Allyl complexes are characteristically fluxional, the principle pathway being an η3–η1–η3 process. Explain this process, and sketch the 1H spectra for the low and high T limits
The living polymerization of norbornene, catalyzed by A, can be halted by the addition of benzaldehyde. The resulting polymer is terminated at one end by -CH=CHPh and at the other by -CH=CHtBu. The
Describe the principles of animal care and maintenance.
Describe how you will find out acute toxicity level in animals.
The following table shows the test results /scores for a group of students. 90 82 42 57 53 57 51 45. Calculate the following using the data provided: Lower quartile, Upper quartile. Calculate the stan
mathematical induction question
The eighth term of an arithmetic progression is twice the fourth term. The seventh term is 14. Find the sum of 100 terms.
Write down the importance of Microbial Inoculant and carriers. What are the criteria needed for ideal carries for Biofertilizer?
Explain the Mendel’s law of Independent Assortment.
Categorize prokaryotes based on their nutritional requirements. Give an example for each and every class.
Throw light on the principle and applications of phase contrast microscope.
What will be the consequence on interference fringes in Young’s double slit experiment if:
State the Huygens principle. For reflection of plane wave front at a plane reflecting surface, construct the corresponding reflected wave front. By using this diagram prove that the angle of inciden
Describe Young’s double slit experiment of interference of light waves. Compute the path difference between interfering waves and give conditions for maxima and minima. Get the expression for
Provide the construction and working of a compound microscope. Define and derive an equation for its magnifying power.
You are given with four lenses of focal lengths 1cm, 3cm, 10cm and 100 cm. Which two would you favor for a microscope and which two for a telescope?
Which type of shift keying technique is used in two tone modulation for code transmission? How is it beneficial than the other type of keying?
Define the word modulation. Describe the requirement of modulation. Name three different kinds of modulation used for a message signal by using a sinusoidal continuous carrier wave. Describe the mea