CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Chemistry ( First Paper)
( Multiple Choice Questions)
Full Marks: 40
1|
Mass of electron is
(A) 9.110-24 gm
Time : 25 minutes
(B) 9.110-31 kg (C) 9.167-24 gm
(D) 9.167-27 gm
2|
Which one is impossible
(A) 3f (B) 4f (C) 5 p (D) 6f
3|
K shows - Colour in the flame test (A) Blue (B)Yellow (C)Green (D)Golden
yellow
4| The spectral series which is formed due to return of electron from outer shell to 3 rd
shell is known as(a) Lymen (b) Balmer (c) Paschen (d) Pfund
5. Visible light has the wave length (a) 10-50nm (b) 10-200 nm (c) 400-750 nm (d) 8003 lac nm.
6. Electron radiates when (a) it moves in an orbit (b)jumps from lower to higher orbit (c)
it reback to its initial position (d) exists in an orbital
7.RH=? (a) 95600 cm-1 (b) 99678 cm-1 (c) 105678 cm-1 (d) 109678 cm-1
8. What number of sub shell is available in the 3rd shell (a) 9 (b) 7 (c) 5 (d) 3
9. ……orbital is dumbel shaped. (a) s (b) pz (c) dxy (d) dz2
10. Which one is the smallest? (a) 2p (b) 3p (c) 5p (d) 1p
11. Two dimensional concept is given in (a) Principal (b) Azimuthal (c)Magnetic (d)
Spin quantum number.
12. Shape is denoted by
(a) Principal (b) Azimuthal (c)Magnetic (d) Spin quantum
number.
13. three different value of m is obtained for l=? (a) 0 (b) 1 (c) 2 (d) 3
14. …. Orbital looks like a football. (a) s (b) p (c) d (d) f.
15. (n+l)=6 is given by… (a) 3d (b) 4p (c) 5p (d) 5f
16. UV ray has the wavelength… nm (a) 0-10 (b) 10-400 (c) 400-750 (d) 800-3 lac .
17. l = 3 denotes… orbital.
(a) s (b) p (c) d (d) f
18. For p orbital - i. l=1 ii. dumbel shaped iii. distributed in three axis; which one is
correct? (a) I (b) ii (c) iii (d) I,ii & iii
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
19.Which one of the following concept of atomic model resemblance in Bohr and
Ruthurford’s atomic model? A) Concept of Orbital b) Concept of Spectral line c)
Concept of electrical neutrality d) Concept of angular momentum
20.Which one of the following concept is considered as the limitation of Bohr’s model?
A) Concept of orbit b) Electron capacity in an orbit c) Energy radiation or absorption
while moving electron in an orbit d) Spectra for multi electron system
21. The shifting and splitting of spectral lines of atoms and molecules due to presence of
an external electric field is known as a) Stark effect b) Zeemann effect c) Planks theory
d) Hygenburg’s uncertainity principle
22. Lymen series radiates light which falls under…a) FIR b) IR c) UV d) Visible
23. When electron returns from 4th shell to 2nd shell it gives a) Lymen b) Paschen c)
Brackett d) Balmer series
24. 1 nm=? Cm
25.What would be the wave length if electron of H returns from 3rd shell to 1st shell?
26. Orientation of electron in a magnetic field is explained in … quantum number.
27. What orbitals are available in 4th shell?
28.Total capacity of electron in f orbital ….
29. Five d orbitals are….
30. An orbital can accommodate a maximum of … electron having spin …. and ….
31.In 2nd shell there are 8 electrons having distribution…
32.Double dumbel shaped orbital is..s/p/d/f
33. p block element is Ca / As / Rb / Cu
35. last electron of Cr enters in s / p / d/ f orbital
36. Electronic configuration of Fe2+ :
37.S2-:
38. Exceptional electronic configuration is shown by a) Cd b) Ce c) Cr d) Cs
39.Which one is impossible a) 3d b) 4f c) 2d d) 1s
40. Which orbital will be filled first a) 6s b) 4f c) 5d d) 5p
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Chemistry ( First Paper)
1. Detection of Sodium ion : 2Na+(aq) + K2H2Sb2O7  Na2H2Sb2O7+ 2K+
2. Detection of Ferrous ion : Fe2+(aq) + K3[Fe(CN)6](aq) KFe[Fe(CN)6]+2K+(aq)
3. Detection of Ferric ion : i) Fe3+(aq)+NH4CNS Fe(CNS)3+NH+4
Ii ) Fe3+(aq)+K4[Fe(CN)6](aq) KFe[Fe(CN)6]+3K+(aq)
4. Detection of Chloride ion : Cl(aq) + AgNO3(aq)  AgCl(s) + NO 3 (aq )
AgCl(s) + HNO3  No Reaction
AgCl(s) + 2NH4OH(aq) = [Ag(NH3)2]Cl(aq)+2H2O
5. Detection of Sulphate ion: i) SO24 (aq )  (CH3COO) 2 Pb(aq )  PbSO4+2CH3COO(aq)
PbSO4(s)+HNO3(dil)No reaction
ii) SO24 (aq )  Ba( NO3 ) 2 (aq )  BaSO4+2 NO 3 (aq)
BaSO4(s)+HNO3(dil)No reaction
6. Detection of ammonium ion:
7. Detection of Zinc ion : i) 2Zn (aq)  K 4 Fe(CN ) 6 (aq)  Zn2 Fe(CN ) 6   4K (aq)
2

ii) Zn2+(aq)+2NaOH(aq)Zn(OH)2 +2Na+(aq)
Zn(OH)2+2NaOH =Na2ZnO2+2H2O
Na2ZnO2+2H2SZnS+Na2S+2H2O
8. Detection of Aluminium ion: Al3++3NaOH(aq)Al(OH)3+3Na+
Al(OH)3(s)+NaOHNaAlO2+2H2O
NaAlO2+NH4Cl Al(OH)3 +NaCl(aq)+NH3(g)
9. Detection of Cupric ion: Cu2+(aq)+K4[Fe(CN)6](aq) Cu2[Fe(CN)6]+4K+(aq)
10. Detection of Ammonium ion: 2NH 4 (aq)+2KOH2NH3+2K++2H2O
2K2[HgI4]4KI+2HgI2
2HgI2
Hg2I4
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Hg2I4+2NH3 NH2[Hg2I3]+NH4I
11. Detection of carbonate ion: CO32 (aq)+Ba(NO3)2(aq)BaCO3(s)+ 2 NO3
BaCO3(s)+2HCl(aq)BaCl2(aq)+CO2(g)+H2O(l)
A. Complete the table:
Ion
Sodium
Reagent
Colour of the ppt
Calcium
Sulphate
Carbonate
Ammonium
Zinc
Copper
Ferrous
Ferric
1. Potassium ferrocyanide can be used to detect………………………….
2. Barium Nitrate can be used to detect………………………………………..
3. Sodium hydroxide gives white gelataneous ppt with …………………… and …………………..
4. Potassium pyro antimonet has the formula……………………………….
5. coloured ions are……………………………………..
6. reddish brown ppt is formed in ……………………………
7. Blood red colour is found in ………………………detection
8. HCl gives bubbles of carbon dioxide with………………………….salt.
9. Brown ppt is found in ………………………. Detection.
10. With NaOH similar test is given by ……………. And ………………ion.
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
1. Electronic configuration of Fe2+, Cu, As, Sr.
2. Electronic configuration in terms of Hund's rule for S, N.
3. Apply Pauli's exclusion principle for the last two electron of Ca,N, O.
4.If the temperature of 250mL solution is lowered from 400C to 300C then what amount
of ppt will be formed? ( solubility at 400C and 300C is 28 and 20 respectively.
5.Mention the reagents needed to detect: Na+, Ca2+, NH4+, Al3+, Zn2+, Cu2+, Fe2+, Fe3+,
SO42-, CO32-, Cl-.
6. How will you differentiate between Aluminium and Zinc salt?
7.Mention the colour of the flame for Ba, Na, Ca, Sr and Cu.
8. Arrange the orbitals in their increasing order of energy value: 3d, 4p, 5p, 4f, 6d,
7a,6p,3p.
9.What type of separation technique will be applicable to separate:
Naphthalene from impurities, NaCl from MgCl2, colours, liquid liquid mixture.
10.What are the conditions of vapour distillation?
11. How common ion affects solubility?
12.Theory of Solubility product is
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Chemistry ( First Paper)
Part-A( Multiple Choice Questions)
1. Wave length of visible light is (a) 10-50nm (b) 10-200 nm (c) 400-750 nm (d) 800-3 lac nm.
2. Radiation occurs when electron (a) moves in the same orbit (b) jump from lower to
higher energy (c) returns from higher to lower energy level (d) resides in an orbital
3. Rydberg constant R is (a) 95600 cm-1 (b) 99678 cm-1 (c) 105678 cm-1 (d) 109678 cm-1
4. Total number of orbital in 3rd shell is (a) 9 (b) 7 (c) 5 (d) 3
5.Last electron of Mn enters in (a) 2p (b) 3d (c) 4s (d) 4p
6. 1s22s22p63s23p63d64s2 is the electronic configuration of (a) Sc (b) Zn (c) Cr (d) Fe
7. Tumer is detected using (a) IR (b) MRI (c) X-ray (d) Laser
8. MRI uses …ray (a) UV (b) FIR (c) NMR (d) X-ray
9. Green colour is given by … in the flame test.
(a) Cl (b) Cu (c) K (d) Cr
11 Boiling point of rectified spirit is (a) 78.30C (b) 78.10C (c) 86.30C (d) 98.30C
12.Purification of
aniline follows
(a) Vapour Distillation
b)Sublimation
(c)
Crystallization (d) distillation
13.Which one is the smallest? (a) 2p (b) 3p (c) 5p (d) 1p
15.Which one is two dimensional?(a) Principal Q. no.(b)Azimuthal(c)Magnetic(d)
Spin
16. Independent quantum number is (a) Principal Q. no.(b)Azimuthal(c)Magnetic(d)
Spin
17. Which one of the following electronic configuration belong to an inert gas?
(a) 1s22s22p63s23p63d6 (b) 1s22s22p63s23p63d64s2
(c) 1s22s22p63s23p63d84s2Ca (d) 1s22s22p63s23p63d104s24p6
18. Three values of m is obtained for what values of l? (a) 0 (b) 1 (c) 2 (d) 3
19. Partion Chromatography is (a) Column (b) Paper (c)Thin layer (d) Dropping
20. Extraction of oil from Eucaliptus leaves follows - (a) Vapour Distillation (b)Solvent
extraction (c) Crystallization (d) Distillation
21.Football shaped is (a) s (b) p (c) d (d) f.
22. (n+l)=6 for (a) 3d (b) 4p (c) 5p (d) 5f
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
23. Solubility principle is (a) lp-lp>lp-bp (b) lattice energy> Hydration energy (c)
insoluble when= kip> ksp (d) ∆G<0
24. Ultra violet ray has the range(a) 0-10 nm (b) 10-400 nm (c) 400-750 nm (d) 800-3 lac nm.
25. l = 3indicate …orbital.
(a) s (b) p (c) d (d) f
26.Which one is correct in terms of Aufbau rule? (a) 3p<4s<3d<4p<5s<4d
(b) 3p<3d<4s<4p<4d<5s (c) 3p>4s>3d<4p<4d>5s (d) 3p<3d<4s<5s<4p<4d
27. For p orbital - i. l=1 ii. dumbel shaped iii. consist of three set; which one is correct?
(a) I (b) ii (c) iii (d) I,ii & iii
28. Na+ is detected with (a)K2H2Sb2O7(b) Na2HPO4 (c) (COO) 2N2H8 (d) Na2 [Co(NO2)6].
29. Cu2+ + K4[Fe(CN)6]=?ppt has the colour (a) Red (b) Yellow (c) Brown (d) Blue
30. Miscible solution isgiven by (a) Ethanol and water (b) Water and Benzene
(c) Phenol and water (d) Benzene and Toluene
31.If electron of Hydrogen returns from higher energy level to 2nd shell then gives
(a) Lymen (b) Balmer (c) Paschen (d) Pfund
32. Enzyme activity is controlled by (a) UV (b) IR (c) NMR (d) FIR
33. MRIstands for (a) Molecular Resonance Imagination (b) Magnetic Resonance
Image (c) Magnetic Resonance Imaging (d) Magnetic Recycling Industry
34. Solubility principle indicates - (a) kip= ksp , insoluble (b) kip<ksp, soluble (c)
Kip>ksp, soluble (d) like dissolves like
Part-B
1. If the solubility product of FeCl3 is 1.6x10-7 then solubility of the salt is
2. Electronic configuration of Fe2+ and Cu is
3. Write the reaction to detect sulphate ion in solution.
4.If 50 g solute is dissolved in 25o ml solution and the solution is taken to low
temperature then 15g precipitation occurs. What will be the solubility.
5. What effect will be observed on solubility if 0.2M HCl is added to 30 ml 0.2M
calcium chloride solution?
Chemistry ( First Paper)
Full Marks: 25
Time: 30minutes Set: B
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Part-A( Multiple Choice Questions)
1.Wavelength of IR is (a) 10-50nm (b) 10-380 nm (c) 400-750 nm (d) 800-3 lac nm.
2.Rydberg constant for Hydrogen is (a) 95600 cm-1 (b) 99678 cm-1 (c) 105678 cm-1 (d)
1096.78 m-1
3. 1s22s22p63s23p63d64s2 is the electronic configuration of (a) Sc (b) Zn (c) Cr (d) Fe
4.Which one is the correct order in the electromagnetic radiation?
(a) IR, UV,FIR, Microwave (b) UV, VIS, FIR,IR (c) UV,IR,VIS, Microwave
(d) UV,VIS,IR, Microwave
5. l = 2 denotes….. orbital
(a) s (b) p (c) d (d) f
6. Which one is the correct order (a) 3p<3d<4s<4p<4d<5s (b) 3p<4s<3d<4p<5s<4d (c)
3p>4s>3d<4p<4d>5s (d) 3p<3d<4s<5s<4p<4d
7. The spectral line formed when electron returns from 5th shell is(a) Lymen (b) Balmer (c) Paschen (d) Pfund
8. Last electron of Ag enters into… orbital. (a) s (b) p (c) d (d) f
9.Possible orbitals for nth shell are .........................................................
10. m gives 5 value for l=? ..................................
Part-B
1. Write electronic configuration of Fe2+ and Cr.
2.Write 4 set of quantum number for the last two electrons of Nitrogen.
3.
K. What is orbital ?
L. In between 3d and 4p, which one will be filled first and why?
M. Calculate the number of orbital possible for the outermost shell of the element
shown in figure1.
3
N.Based on the last two figure, which atomic model do you support and why?
Chemistry ( First Paper)
Full Marks: 25
Time: 30minutes Set: A
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Part-A( Multiple Choice Questions)
1.Wavelength of VIS is (a) 10-50nm (b) 10-380 nm (c) 400-750 nm (d) 800-3 lac nm.
2.Rydberg constant for Hydrogen is (a) 95600 cm-1 (b) 99678 cm-1 (c) 109678 cm-1 (d)
1096.78 cm-1
3. 1s22s22p63s23p63d104s2 is the electronic configuration of (a) Sc (b) Zn (c) Cr (d) Fe
4.Which one is the correct order in the electromagnetic radiation?
(a) IR, UV,FIR, Microwave (b) UV,VIS,IR, Microwave (c) UV,IR,VIS, Microwave
(d) UV, VIS, FIR,IR
5. l = 3 denotes….. orbital
(a) s (b) p (c) d (d) f
6. Which one is the correct order (a) 3p<3d<4s<4p<4d<5s (b) 3p<4s<3d<4p<5s<4d (c)
3p>4s>3d<4p<4d>5s (d) 3p<3d<4s<5s<4p<4d
7. The spectral line formed when electron returns from 3rd shell is(a) Lymen (b) Balmer (c) Paschen (d) Pfund
8. Last electron of Au enters into… orbital. (a) s (b) p (c) d (d) f
9.Possible orbitals for nth shell are .........................................................
10. m gives 3 value for l=? ..................................
Part-B
1. Write electronic configuration of Fe2+ and Cu.
2.Write 4 set of quantum number for the last two electrons of Oxygen.
3.
K. What is orbit ?
L. In between 5p and 4f, which one will be filled first and why?
M. Calculate the total number of electrons possible for the outermost shell of the
element shown in figure1.
3
N.Based on the last two figure, which atomic model gives more accurate
information and why?
Chemistry ( First Paper)
Full Marks: 25
Time: 30minutes Set: C
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Part-A( Multiple Choice Questions)
1.Wavelength of UV is (a) 10-50nm (b) 10-380 nm (c) 400-750 nm (d) 800-3 lac nm.
2.Rydberg constant for Hydrogen is (a) 95600 cm-1 (b) 99678 cm-1 (c) 109678 cm-1 (d)
1096.78 cm-1
3. 1s22s22p63s23p63d54s1 is the electronic configuration of (a) Sc (b) Zn (c) Cr (d) Fe
4.Which one is the correct order in the electromagnetic radiation?
(a) IR, UV,FIR, Microwave (b) UV,VIS,IR, Microwave (c) UV,IR,VIS, Microwave
(d) UV, VIS, FIR,IR
5. l = 1 denotes….. orbital
(a) s (b) p (c) d (d) f
6. Which one is the correct order (a) 3p<3d<4s<4p<4d<5s (b) 3p<4s<3d<4p<5s<4d (c)
3p>4s>3d<4p<4d>5s (d) 3p<3d<4s<5s<4p<4d
7. The spectral line formed when electron returns from 2nd shell is(a) Lymen (b) Balmer (c) Paschen (d) Pfund
8. Last electron of Ce enters into… orbital.
(a) s (b) p (c) d (d) f
9.Possible orbitals for nth shell are .........................................................
10. m gives 7 value for l=? ..................................
Part-B
1. Write electronic configuration of Fe3+ and Cu.
2.Write 4 set of quantum number for the last two electrons of Phosphorus.
3.
K. What is Paulis exclusion Principle?
L. In between 4p and 4f, which one will be filled first and why?
M. Calculate the total number of electrons possible for the outermost shell of the
element shown in figure1.
3
N. Based on the last two figure, which atomic model can explain the concept of
spectra and why?
Chemistry ( First Paper)
Full Marks: 25
Time: 30minutes Set: B
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)
CHEMISTRY LEARNING CHECK
CHAPTER 2 PRACTICE 1
Part-A( Multiple Choice Questions)
1.Wavelength of VIS is (a) 10-50nm (b) 10-380 nm (c) 400-750 nm (d) 800-3 lac nm.
2.Rydberg constant for Hydrogen is (a) 95600 cm-1 (b) 99678 cm-1 (c) 105678 cm-1 (d)
1096.78 m-1
3. 1s22s22p63s23p63d64s2 is the electronic configuration of (a) Sc (b) Zn (c) Cr (d) Fe
4.Which one is the correct order in the electromagnetic radiation?
(a) IR, UV,FIR, Microwave (b) UV, VIS, FIR,IR (c) UV,IR,VIS, Microwave
(d) UV,VIS,IR, Microwave
5. l = 3 denotes….. orbital
(a) s (b) p (c) d (d) f
6. Which one is the correct order (a) 3p<3d<4s<4p<4d<5s (b) 3p<4s<3d<4p<5s<4d (c)
3p>4s>3d<4p<4d>5s (d) 3p<3d<4s<5s<4p<4d
7. The spectral line formed when electron returns from 4th shell is(a) Lymen (b) Balmer (c) Paschen (d) Pfund
8. Last electron of Au enters into… orbital. (a) s (b) p (c) d (d) f
9.Possible orbitals for nth shell are .........................................................
10. m gives 7 value for l=? ..................................
Part-B
1. Write electronic configuration of Fe3+ and Cr.
2.Write 4 set of quantum number for the last two electrons of Nitrogen and
Oxygen.
3.
K. What is orbital ?
L. In between 5p and 4d, which one will be filled first and why?
M. Calculate the number of orbital possible for the outermost shell of the element
shown in figure1.
3
N. Based on the limitations of the concept of last two figure, which model is more
accurate and why?
BIPLOB KUMER DEB, FACULTY,DEPT. OF CHEMISTRY, NOTRE DAMECOLLEGE,DHAKA. (01711220991)