V In solvent extraction technique, why repeated extraction ining small perso extraction but larger volume of solvent
Q.2 Write short answers to any EIGHT (8) questions:
L Nand CO have the same number of electrons protons and neutrons
Law of conservation of mass has to be obeyed during stoichiometric analysis
Why actual yield is always less than theoretical yield? iv. Write down any two uses of chromatography
vi. Write formulas to interconvert various scales of temperature
vi State Dalton's law of partial pressures.
viii Write down two characteristics of plasma
ix: How density of an ideal gas can be calculated from ideal gas equation? Write two points of differences between ideal and non-ideal solutions
XI State Raoult's law in any two forms
xil What are Colligative properties? Why are they called so
(CH2.
Ex Q8)
(CH 3.015) CH 3.025
ICH 3.0 57
(CH 3.030
(CH 9,0 16
(CH9.01
(CH 9,02
X
Q.3 Write short answers to any EIGHT (8) questions:
Why ethyl alcohol is soluble in water?
ii. Why HF is a weaker acid than HCI?
What is habit of crystal?
iv. What is meant by geometrical shape of solid?
What are canal rays?
vi. What is reason for production of positive rays? vil What is planks constant? Give its value.
vill. What is defect of Rutherford's atomic model? ix. Why do we need Buffer solutions?
What is effect of catalyst on equilibrium constant?
Define rate of reaction and give its units
xil. What is period of a reaction?
(2x816) (CH 4, QJE
(CH 4.0
(CH 4,0
(CH 4.Q
(CH 3,0
(CH 5.Q
(CH 5, Q
(CH 3, Q5
(CH 8.Q 18
(CH 11,03
ICH 11, Q1
X.
V
Q.4 Write short answers to any SIX (6) questions: What is octet rule? Give examples
(26-121
(CH6, QU
ii. What is the difference between lonic radii and covalent radi? ii. Define ionization energy Give one example.
(CH 6. Q 28 & 30
iv. Differentiate between bonding and anti-bonding molecular orbital
(CH 6. Q1) ICH 6, Q69
Differentiate between system and surrounding
vi. Define enthalpy of atomization. Give one example
(CH 7, Q9
vii. Calculate the oxidation number of manganese in KMnO
(CH 7, Q 2400
ICH 10.012
viii. Write the difference between ionization and electrolysis. ix. Explain that a salt bridge maintains the neutrality in the cell
(CH 10, Ex Q 12
(CH 10. Ex Q 16
Section -II
Note: Attempt any THREE questions from the following:
a) Define hydrogen bonding. Explain any three applications of hydrogen bonding b) Calculate the number of grams of 50 and water produced when 14 of KOH are reacted with excess of calculate the number of molecules of water produced.
Q.6
a) Discuss in detail the practical applications of Daltons law of partial pressure b) Give the characteristics of cathode rays
0.7
a) Explain structure of CH and CH, CH; by atomic Hybridization process
1041
b) State Hess's law and explain it with at least two examples.
1040
0.8
a) N; and H: gases combine to give ammonia (NH) gas The value of equilibrium constant (K) x10 Calculate the value of Kp for this reaction.
for this reaction at 500't
by Name any three methods for finding order of a reaction and explain half life method b) Explain working of voltaic cell along with its diagram, a) Write note on elevation of Boiling point of a solution and relate it with molecular mass of solute in a solution
Q9
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