General Instructions
|
|
1. All questions are compulsory.
2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each.
3. Question nos. 9 to 18 are short answer questions and carry 2 marks each.
4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each
5. Question nos. 28 to 30 are long answer questions and carry 5 marks each
6. Use log tables if necessary, use of calculators is not allowed.
|
|
General Instructions
1. All questions are compulsory.
2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each.
3. Question nos. 9 to 18 are short answer questions and carry 2 marks each.
4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each
5. Question nos. 28 to 30 are long answer questions and carry 5 marks each
6. Use log tables if necessary, use of calculators is not allowed.
Q: 1) Give preparation reaction for Terylene.
Q: 2 Write the IUPAC name of
[Pt(NH3)2Cl(NO2)]
Q: 3) Write an example of analgesic and antipyretic drug.
Q: 4) Out of maltose and sucrose, which is reducing sugar?
Q: 5) What are ambident nucleophiles?
Q: 6) What happen when benzaldehyde react with aniline in acidic medium?
Q: 7) Give an example of Hoffman bromamide reaction?
Q: 8) What is chemical Adsorption?
Q: 9) Silver forms ccp lattice and x ray studies of its crystals.
Show that the edge length of its unit cell is 408.6 pm.
Calculate the density of silver.(Atomic mass of silver =107.9 u ).
Q: 10) Explain the following:
1) F –centre
2) A Hole
Q: 11) Explain the chemistry of lead storage battery while charging.
Q: 12) How is disproportionation takes place in chemical reactions?
Write a chemical reaction to show disproportionation.
Q: 13) Explain the formation of Bakelite.
Q: 14) Give the reasons for:
1) Haloalkanes though polar ,are insoluble in water.
2) Grignard reagents should be prepared under anhydrous conditions.
Q: 15) Describe the functions of antibiotics or antimicrobials. Give an example.
Q: 16) Using valency bond theory predict the shape and magnetic behavior of
[Co(NH3)6]3+ion.
Q: 17) How will you distinguish between the following chemicals:
1. Chloroethaneane and Bromoethane
2. Chlorobenzene and Chlorocyclohexane
Q: 18) State Henry‘s law and mention its two important applications .
OR
Calculate the freezing point of a solution containing 18 g of C6H12O6 ,and 68.4 g of C12H22O11 ,in 200 g water.
The freezing point of pure water is 00C and Cryoscopic Constant of water is 1.86 K/m.
Q: 19) Complete the following :
1. CH3CH2 CH2NH2 +HCl ---------------------------------->
2. C6H5N2Cl +H3PO2+H2O -------------------------------->
3. C6H5N2Cl + C2H5 OH----------------------------------->
Q: 20) 1) Write the IUPAC name of OHCH2CH =CHCH2OH
2) Explain the mechanism of hydration of ethene .
Q: 21) 1) What is nucleoside ?
2) What are water soluble vitamins?
3) Give deficiency diseases of vitamin C and D.
Q: 22) Complete and balance the following equations :
1. F2+H2O(cold) ---------------------------------->
2. BrO3- +F2+OH---------------------------------->
3. Ca3P2+ H2O------------------------------------>
OR
1. PCl5 +H2O------------------------------------->
2. KMNO4 +HCl---------------------------------->
3. S +HNO3--------------------------------------->
Q: 23) Explain
1) Freundlich adsorption isotherm.
2) Shape selective catalysts?Give an example of such catalyst.
Q: 24) Calculate the emf of the following cell at 298 K:
Cu(s)I Cu2+(0.130M) II Ag+(1.00x10-4M) IAg(s)
Given E0 Cu2+ /Cu =+0.34 V and E0 Ag+ /Ag =+0.80 V.
Q: 25) Explain the role of
1) Cryolite in the electrolytic reduction of alumina
2) CO in the purification of nickel
3) Zinc in recovery of silver.
Q: 26) Calculate the depression in freezing point of water when 20.0 g of CH3CH2CHClCOOH is added to 500 g of water.
Given Ka=1.4X10-3,Kf=1.86 Kkg/mol
Q: 27) What is meant by lanthenoid contraction ?
Discuss the important consequences of lanthenoid contraction.
Q:28) a) Convert the followings:
1) Benzene to Benzoic acid
2) Benzoic acid to benzamide
b) Describe the following with suitable chemical reactions:
1) Aldol condensation
2) Cannizzaro reaction
c) Write the IUPAC name of
C6H5CH2COCH3
Or
a) Convert the followings:
1) Benzaldehyde to benzophenone
2) Ethanol to propanone
b) Describe the following with suitable chemical reactions:
1) Stephen reduction
2) Gattermann Koch reaction.
c. Write the IUPAC name of
CH3CHCH3CH2C(CH3)2COCH3
Q:29) a) Complete and balance the following chemical equations:
1) Br2 +F2 ------------------>
2) U + ClF3 ------------------>
3) XeF6+ H2O---------------->
b) Write the reaction for thermal decomposition of sodium azide.
c) Why does PCl3 fume in moisture?
OR
Give the answer of the following:
1) Draw the structure of XeF4.
2) Do all bonds in PCl5 alike ?
3) Why ammonia is a stronger base than phosphine?
4) White phosphorous is more reactive than red phosphorus.Why?
5) Thermal stability of water is much higher than that of H2S.Why?
Q:30) a) How can temperature effect on rate constant be represented quantitatively?
b) The rate constant for a first order reaction is 60/sec.How much time will it take to reduce the initial concentration of the reactant to its 1/16th value?
OR
a) Define order of reation .Derive integrated rate law for 0 order reaction.
b.) first order reaction takes 40 min for 30% decomposition.Calculate t1/2 for first order reaction.
|
|
Q: 3)
|
Write an example of analgesic and antipyretic drug.
|
Q: 4)
|
Out of maltose and sucrose, which is reducing sugar?
|
Q: 5)
|
What are ambident nucleophiles?
|
Q: 6)
|
What happen when benzaldehyde react with aniline in acidic medium?
|
Q: 7)
|
Give an example of Hoffman bromamide reaction?
|
Q: 8)
|
What is chemical Adsorption?
|
Q: 9)
|
Silver forms ccp lattice and x ray studies of its crystals.
Show that the edge length of its unit cell is 408.6 pm. Calculate the density of silver.(Atomic mass of silver =107.9 u ). |
Q: 10)
|
Explain the following:
1) F –centre 2) A Hole |
Q: 11)
|
Explain the chemistry of lead storage battery while charging.
|
Q: 12)
|
How is disproportionation takes place in chemical reactions?
Write a chemical reaction to show disproportionation. |
Q: 13)
|
Explain the formation of Bakelite.
|
Q: 14)
|
Give the reasons for:
1) Haloalkanes though polar ,are insoluble in water.
2) Grignard reagents should be prepared under anhydrous conditions.
|
Q: 15)
|
Describe the functions of antibiotics or antimicrobials. Give an example.
|
Q: 16)
|
Using valency bond theory predict the shape and magnetic behavior of
[Co(NH3)6]3+ion. |
Q: 17)
|
How will you distinguish between the following chemicals:
1. Chloroethaneane and Bromoethane
2. Chlorobenzene and Chlorocyclohexane
|
Q: 18)
|
State Henry‘s law and mention its two important applications .
OR
Calculate the freezing point of a solution containing 18 g of C6H12O6 ,and 68.4 g of C12H22O11 ,in 200 g water.
The freezing point of pure water is 00C and Cryoscopic Constant of water is 1.86 K/m. |
Q: 19)
|
Complete the following :
1. CH3CH2 CH2NH2 +HCl ---------------------------------->
2. C6H5N2Cl +H3PO2+H2O -------------------------------->
3. C6H5N2Cl + C2H5 OH----------------------------------->
|
Q: 20)
|
1) Write the IUPAC name of OHCH2CH =CHCH2OH
2) Explain the mechanism of hydration of ethene . |
Q: 21)
|
1) What is nucleoside ?
2) What are water soluble vitamins?
3) Give deficiency diseases of vitamin C and D.
|
Q: 22)
|
Complete and balance the following equations :
1. F2+H2O(cold) ---------------------------------->
2. BrO3- +F2+OH---------------------------------->
3. Ca3P2+ H2O------------------------------------>
OR
1. PCl5 +H2O------------------------------------->
2. KMNO4 +HCl---------------------------------->
3. S +HNO3--------------------------------------->
|
Q: 23)
|
Explain
1) Freundlich adsorption isotherm.
2) Shape selective catalysts?Give an example of such catalyst.
|
Q: 24)
|
Calculate the emf of the following cell at 298 K:
Cu(s)I Cu2+(0.130M) II Ag+(1.00x10-4M) IAg(s)
Given E0 Cu2+ /Cu =+0.34 V and E0 Ag+ /Ag =+0.80 V.
|
Q: 25)
|
Explain the role of
1) Cryolite in the electrolytic reduction of alumina
2) CO in the purification of nickel
3) Zinc in recovery of silver.
|
Q: 26)
|
Calculate the depression in freezing point of water when 20.0 g of CH3CH2CHClCOOH is added to 500 g of water.
Given Ka=1.4X10-3,Kf=1.86 Kkg/mol
|
Q: 27)
|
What is meant by lanthenoid contraction ?
Discuss the important consequences of lanthenoid contraction. |
Q:28)
|
a) Convert the followings:
1) Benzene to Benzoic acid
2) Benzoic acid to benzamide
b) Describe the following with suitable chemical reactions:
1) Aldol condensation
2) Cannizzaro reaction
c) Write the IUPAC name of
C6H5CH2COCH3
Or
a) Convert the followings:
1) Benzaldehyde to benzophenone
2) Ethanol to propanone
b) Describe the following with suitable chemical reactions:
1) Stephen reduction
2) Gattermann Koch reaction.
c. Write the IUPAC name of
CH3CHCH3CH2C(CH3)2COCH3 |
Q:29)
|
a) Complete and balance the following chemical equations:
1) Br2 +F2 ------------------>
2) U + ClF3 ------------------>
3) XeF6+ H2O---------------->
b) Write the reaction for thermal decomposition of sodium azide.
c) Why does PCl3 fume in moisture?
OR
Give the answer of the following:
1) Draw the structure of XeF4.
2) Do all bonds in PCl5 alike ?
3) Why ammonia is a stronger base than phosphine?
4) White phosphorous is more reactive than red phosphorus.Why?
5) Thermal stability of water is much higher than that of H2S.Why?
|
Q:30)
|
a) How can temperature effect on rate constant be represented quantitatively?
b) The rate constant for a first order reaction is 60/sec.How much time will it take to reduce the initial concentration of the reactant to its 1/16th value? OR
a) Define order of reation .Derive integrated rate law for 0 order reaction.
b.) first order reaction takes 40 min for 30% decomposition.Calculate t1/2 for first order reaction.
|
Can PCl 3 act as an oxidising as well as reducing agent? If yes, how? Illustrate with the help of equations. ANswer: Yes, PCl 3 can act both as an oxidising agent as well as reducing agent. It react with sulphur tri oxide to reduce it to sulphur di oxide. PCl 3 +SO 3 -------------> POCl 3 + SO 2 It also react with metals like silver and sodium to form their chlorides. PCl 3 + 6 Na ---------------> 3 NaCl +Na 3 P
Comments
Post a Comment