B 00cYT100121903
Reg No.: Narle:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Second Semester B.Tech Degree Examination July 2021 (2019
Course Code: CYTIOO
Course Name: ENGINEERING CHEMISTRY
(2019 Scheme)
Max. Marks: 100 Duration: 3 Hours
PART A
Answer all questions, eaclt carries -J nrurks. Marks
I \\/hat is galvanic series? Horv is galvanic series advantageous over (3)
electrochemical series in corrosion chemistrr'?
2 Wh,v full charging is not allou,ed in Li-ion cell? (3)
3 CHCI3 gives a singlet at 7.26 ppm- while CHrCI shoss singlet at 3.06 pprn in the (3)
'H NMR spectrum. Give reason.
4 Explain the reason for broadening of UV-Visible (electronic) spectrum. (3)
5 \\/rite any three applications of TGA. (3)
6 Explain the tenns retention time (tp) and relatir e peak area (RPA) in GC. (3)
7 Draw the Fischer projection formula for the nrcso form of the follorving and (3)
conveft it into S'au'-Horse structure. C6H5-CH(Cl)- CHtCI)-CoHs
8 Write the s)'nthesis of poll plrrole. (3)
9 \\'hich buffer is used in EDTA method? What is its role in titration? (3)
l0 Explain break point of chlorination. (3)
PART B
Answer onefull questionfrom each module, each question carries l4 marks
Module-I
I I a) Derive Nernst equation and applf it forthe emf of Daniel cell. (8)
b) Hor.v is electroless nickel plating done? Write the reactions involved. Give an1' (6)
trvo applications of it. r
12 a) With the help of electrochemical equations. shorv that rusting of iron is more (8)
severe in oxygen rich acidic medium than alkaline medium.
b) A glass electrode- calomel electrode assembll,'shorvs an emf of 212 mV rvith pH: (6)
4 buffer solution and -30mV rvith pH:9.2 buffbr solution. Find the pH of the test
solution if it'shows an emf of 120 mV. Also find E06 if Esce : 0.2422V
Page I of2
Downloaded from Ktunotes.in
Reg No.: Narle:
APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
Second Semester B.Tech Degree Examination July 2021 (2019
Course Code: CYTIOO
Course Name: ENGINEERING CHEMISTRY
(2019 Scheme)
Max. Marks: 100 Duration: 3 Hours
PART A
Answer all questions, eaclt carries -J nrurks. Marks
I \\/hat is galvanic series? Horv is galvanic series advantageous over (3)
electrochemical series in corrosion chemistrr'?
2 Wh,v full charging is not allou,ed in Li-ion cell? (3)
3 CHCI3 gives a singlet at 7.26 ppm- while CHrCI shoss singlet at 3.06 pprn in the (3)
'H NMR spectrum. Give reason.
4 Explain the reason for broadening of UV-Visible (electronic) spectrum. (3)
5 \\/rite any three applications of TGA. (3)
6 Explain the tenns retention time (tp) and relatir e peak area (RPA) in GC. (3)
7 Draw the Fischer projection formula for the nrcso form of the follorving and (3)
conveft it into S'au'-Horse structure. C6H5-CH(Cl)- CHtCI)-CoHs
8 Write the s)'nthesis of poll plrrole. (3)
9 \\'hich buffer is used in EDTA method? What is its role in titration? (3)
l0 Explain break point of chlorination. (3)
PART B
Answer onefull questionfrom each module, each question carries l4 marks
Module-I
I I a) Derive Nernst equation and applf it forthe emf of Daniel cell. (8)
b) Hor.v is electroless nickel plating done? Write the reactions involved. Give an1' (6)
trvo applications of it. r
12 a) With the help of electrochemical equations. shorv that rusting of iron is more (8)
severe in oxygen rich acidic medium than alkaline medium.
b) A glass electrode- calomel electrode assembll,'shorvs an emf of 212 mV rvith pH: (6)
4 buffer solution and -30mV rvith pH:9.2 buffbr solution. Find the pH of the test
solution if it'shows an emf of 120 mV. Also find E06 if Esce : 0.2422V
Page I of2
Downloaded from Ktunotes.in
