|||| - CHEMISTRY 1ST YEAR B TECH KTU IMPORTANT QUESTIONS FOR KTU STUDENTS [FIRST YEAR] | QUESTION BANK


APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY

chemistry important questions,chemistry ktu btech questions,chemistry previous questions,chemistry questions,ktu chemistry questions,ktu s1,ktu s2,ktu s1 s2 physics,CHEMISTRY 1ST SEMESTER B TECH KTU IMPORTANT QUESTIONS FOR KTU STUDENTS [FIRST YEAR] | QUESTION BANK
1ST SEMESTER B TECH KTU IMPORTANT PREVIOUS QUESTIONS

15. Give three points of difference between aerobic oxidation and anaerobic oxidation.

16. What are ion exchange resins? Give examples for cation and anion exchange resins?

17. What is chemical shift? Write the cause of chemical shift.

(b) Co molecule absorbs at 2140cni4. Calculate the force consent of the molecule, given atomic masses of C and 0 are 12u and 16 u respectively 1u=1.67 x10-27 kg.

(c) What are the various energy transitions possible in a molecule? Why does electronic spectrum appear broad?

18. (a) Why does a signal for a particular set of protons split into a multiplet?

Give number of signals. Peak ration and multiplicity of different sets of protons in the NMR spectrum f1 bromopropane.

(b) Give a neat and labeled sketch of instrumentation of UV- visible spectrometer.

(c) Write a note on vibrational modes of carbon dioxide molecule. State which of these modes are IR active; and give reason for their activity.

19. (a) Draw a well labelled diagram of calomel electrode. Write electrode reaction and representation of the electrode.

(b) Find the potential of hydrogen electrode at 250 C for solution of pH=0 and pH = 14.

20.(a) Explain the principle and instrumentation of HPLC.

(b) Differentiate between DTA thermogram and TGA thermo gram graphically. 
Give one important application of each type.


21. (a) Give a comparison of GSC and GLC.


(b) Write the working of TLC. List the important applications.

22. (a) Write the preparation and important properties of silicone rubber.


(b) Write the sol-gel method for the synthesis of nano materials.

23. (a) Give the classification of conducting polymers and write the mechanism of conduction in them.

(b) Write structural formulae and important uses of the polymers Kevlar and ABS.

24. (a) What are greases? Write a brief note on their classification.

(b) The temperature of 1000g of water was increased from 26.50C to 29.20C on burning 0.80g of a solid fuel in a bomb calorimeter. Water equivalent of calorimeter and latent heat of steam are 385 g and 587 cal/g respectively. If fuel contains 0.7% hydrogen calculate its gross and net calorific value.

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