1. Want more Updates http://tanbircox.blogspot.com pdf Menu Bar View Auto /Automatically Scroll ( Ctrl + Shift + H ) up Arrow down Arrow 1| Avgvwbqvi (NH3) mv_ (K) AwRb (L) mvwWqvg Gi wewqv `LvI (K) cvwUbvg cfveKi DcwwZZ Avgvwbqv AwRbi mv_ 9000 m. Zvcgvvq wewqv Ki bvBwUK AvBW I cvwb Drcboe Ki| 4NH3 + 5O2 C 0 900 4NO + 6H2O (L) mvwWqvgi mv_ Avgvwbqv Mvmi wewqvq mvwWqvg AvgvBW MwVZ nq| 2Na + 2NH3 = 2NaNH2 +H2 2| P2O3 Gi mv_ (K) Kvwib (L) cvwb (M) AwRbi wewqv jL| (K) Bnv Kvwibi msk Rj DV Ges dmdivm AwUvBKvivBW I dmdivm WvB Aw gbv KvivBW MVb Ki| P2O3 + 2Cl2 = POCl3 + PO2Cl (L) Bnv kxZj cvwbi mv_ wewqv Ki dmdvwbK GwmW Drcboe Ki| P2O3 +3H2O = 2H3PO3 wK Mig cvwbi mv_ wewqv Ki dmwdb I dmdvwiK GwmW MVb Ki| 2P2O3 + 6H2O = PH3 + 3H3PO4 (M) BnvK AwZwi AwRb `nb Kij dmdivm cUv AvBW MVb Ki| P2O3 +O2 = P2O5 2. Want more Updates http://tanbircox.blogspot.com 3| P2O5 Gi mv_ kxZj I Mig cvwbi wewqv kxZj cvwbi mv_ P2O5 wnm wnm k mnKvi wewqv Ki gUvdmdwiK GwmW MVb Ki| P2O5 +H2O = 2HPO3 D cvwbZ P2O5 hvM Kij A_vdmdwiK GwmW MwVZ nq| P2O5 +3H2O = 2H3PO4 4| D Kij wK NU? (K) KNO3 (L) Pb(NO3)2 (M) NH4NO3 (bvU t Zwor ivmvqwbK mvwiZ Kvjwmqvgi Dcii avZz mg~ni bvBUU Zvc bvBUvBU-G cwiYZ nq| Kvjwmqvg _K Kcvi ch avZzi bvBUU Zvci cfve AvBW MVb Ki| Kcvii wbP AewZ avZzi bvBUU weqvwRZ nq avZzZ cwiYZ nq) (K) KNO3 = 2KNO2 + O2 (L) Pb(NO3)2 2PbO + 4NO2+O2 (M) NH4NO3 N2O + 2H2O 5| CuSO4 Ges AgNO3 `eY c_Kfve AwZwi Avgvwbqv `eY hvM Kij wK wK cvIqv hvq? CuSO4 Gi mv_ Avgvwbqv `eY t CuSO4 Gi mv_ Avgvwbqv `eY (NH4OH) hvM Kij c_g vixq Kcvi mvjdUi bxj Aac co| ci AwZwi Avgvwbqv `eY hvM Kij UUvwgb wKDwcK mvjdUi Mvp bxj `eY m nq| 2CuSO4 + 2NH4OH = CuSO4.Cu(OH)2 + (NH4)2SO4 CuSO4.Cu(OH)2 + (NH4)2SO4+ 6NH4OH = 2[Cu(NH3)4]SO4 +8H2O AgNO3 Gi mv_ Avgvwbqv `eY t AgNO3 Gi mv_ AwZwi Avgvwbqv `eY2hvM Kij `eYxq WvB Avwgb wmjfvi bvBUU MwVZ nq| 2AgNO3 + 2NH4OH = Ag2O+ 2NH4NO3 + H2O Ag2O+ 2NH4NO3 + 4NH4OH = 2[Ag(NH3)2]NO3 + 3H2O 3. Want more Updates http://tanbircox.blogspot.com 6| wewqvjv c~Y Ki t (K) SO2 + H2S = SO2 + 2H2S = 2H2O +3S (L) FeCl3 + H2S = 2FeCl3 + H2S = 2FeCl2 + 2HCl + S (M) NH3 +Cl2 = 2NH3 +3Cl2 = 6HCl + N2 (N) K2Cr2O7+H2SO4+H2S = K2Cr2O7+4H2SO4+3H2S = K2SO4 + Cr2(SO4)3 + 7H2O+3S (O) HNO3+P2O5 = 2HNO3+P2O5 = N2O5+2HPO3 (P) KMnO4 + H2SO4+H2S = 2KMnO4 +3H2SO4+5H2S = K2SO4+2MnSO4+8H2O+5S (Q) NaOH +SO2 = 2NaOH +SO2 = Na2SO3+H2O (R) Cu +H2SO4 (Conc) = Cu +2H2SO4 (Conc) = CuSO4+SO2+2H2O (S) Pb(NO3)2 + H2S = Pb(NO3)2 + H2S = PbS +2HNO3 (T) Cu +HNO3 (CONC) = Cu +4HNO3 (CONC) = Cu(NO3)2 + 2H2O +2NO2 (U) NH4Cl + CaO = 2NH4Cl + CaO =2NH3 +CaCl2 +H2O (V) Cu +HNO3 (Vap) = 5Cu +2HNO3 (Vap) = 5CuO + H2O +N2 (W) CuO +NH3 = 3CuO +2NH3 = 3Cu + 3H2O +N2 (X) FeCl3 + SO2+H2O= 2FeCl3 + SO2 +2H2O =2FeCl2+2HCl+H2SO4 (Y) NO+KOH = 4NO+2KOH = 2KNO2+N2O + H2O 4. Want more Updates http://tanbircox.blogspot.com 1| B_vbj _K Bw_b cwZ t B_vbjK AwZwi cwigvY I Mvp H2SO4 mnhvM D Kij Zv wbiw`Z nq Bw_b cZ Ki| H3C-CH2-OH+H2SO4 C 0 100 H3C-CH2-SO4H+H2O H3C-CH2-SO4H C 0 165 H2C=CH2 + H2SO4 2| B_vbj _K WvB B_vBj B_vi cwZt AwZwi cwigvb B_vbjK Mvp H2SO4 mnhvM 1400C Zvcgvvq D Kij WvB B_vBj B_vi MwVZ nq| H3C-CH2-OH+H2SO4 C 0 100 H3C-CH2-SO4H +H2O H3C-CH2-SO4H + H3C-CH2-OH C 0 140 CH3-CH2-O-CH2-CH3 + H2SO4 3| B_vbj _K B_vBj B_vbqU cwZ t B_vbwqK GwmWi mv_ B_vbji wewqvq B_vBj B_vbqU MwVZ nq| C2H5OH+ CH3COOH C2H5COOCH3+H2O 4| B_vbj _K B_vBj AvqvWvBW cwZ t B_vbji mv_ HI Gi wewqvq B_vBj AvqvWvBW MVb Ki| C2H5OH+ HI C2H5I+H2O 6| dbj _K Avwbmj cwZ t dbji mv_ NaOH Gi wewqvq mvwWqvg wdbU MwVZ nq| Gi mv_ wg_vBj AvqvWvBWi wewqvq Avwbmj (wdbvBj wg_vBj B_vi) MwVZ nq| + NaOH + H2O +CH3I +NaI 7| dbj _K wcKwiK GwmW cwZ t dbjK Mvp bvBwUK GwmW (HNO3) Gi wewqvq wcKwiK GwmW MwVZ nq| + 3HNO3 (Mvp) + 3H2O OH ONa ONa OCH3 OH OH NO2 NO2 O2N 5. Want more Updates http://tanbircox.blogspot.com 8| dbj _K ebwRb cwZ t dbji mv_ Zn Gi wewqvq ebwRb MwVZ nq| + Zn + ZnO 9| dbj _K dbj mvjdvwbK GwmW cwZ t ^vfvweK Zvcgvvq ewbRb Gi mv_ Mvp H2SO4 Gi wewqvq A_v I cviv dbj mvjdvwbK GwmW MwVZ nq| + 2H2SO4 + 10| dbj _K mvwjmvjwWnvBW cwZ t (ivBgvi UvBgvb wewqv) dbjK KwK mvWv ev KwK cUvmi Rjxq `ebi DcwwZZ 600C Zvcgvvq Kvivdigi mv_ D Kiv nj mvwjmvjwWnvBW MwVZ nq| + CHCl3+3KOH C 0 60 +3KCl + 2H2O 11| dbj _K Avwbwjb cwZ t ZnCl2 wbi`Ki DcwwZZ dbjK Avgvwbqvi mv_ 3000C Zvcgvvq I DP Pvc D Kij Avwbwjb MwVZ nq| +NH3 ZnCl 600C 2 + H2O 12| dbj _K mvwjmvBwjK GwmW cwZ t (Kve wewqv) dbjK NaOH Gi mv_ wewqv Kivj mvwWqvg wdbU MwVZ nq| Gi mv_ CO2 Gi wewqvq mvwWqvg mvwjmvBjU MwVZ nq| DyZ mvwjmvBjUK HCl mn Av` weklb Kivj mvwjmvBwjK GwmW MwVZ nq| + NaOH + CO2 +HCl OH OH OH SO3H OH SO3H OH OH CHO OH NH2 OH ONa OH COONa OH COOH 6. Want more Updates http://tanbircox.blogspot.com 2q 1| wewfboe Aevq vii mv_ Kvwibi wewqv `LvI| (vii mv_ Kvwibi Amvgm wewqv) vii mv_ Kvwib 2wU Aevq wewqv Ki (K) ^vfvweK Zvcgvv ev 250C Zvcgvvq vi (NaOH) Gi mv_ Kvwib wewqv Ki mvwWqvg KvivBW I mvwWqvg nvBcv KvivBU MVb Ki| Cl2+2NaOH C 0 25 NaCl+NaClO +H2O (L) 700C Zvcgvvq D I Mvp vi (NaOH) `eYi mv_ Kvwibi wewqvq mvwWqvg KvivBW I mvwWqvg KviU MwVZ nq| 2Cl2+6NaOH C 0 70 5NaCl+NaClO3 +3H2O 2| cUvwkqvg evgvBWi mv_ Mvp mvjwdDwiK GwmWi wewqvq wK Drcboe nq? cUvwkqvg evgvBWi mv_ Mvp mvjwdDwiK GwmWi wewqvq cUvwkqvg nvBWvRb mvjdU, mvjdvi WvB& AvBW I evwgb MwVZ nq| 2KBr +3H2SO4 2KHSO4 + SO2 + Br2 +2H2O we.`. - KBr Gi RvqMvq KI wbj I2 Drcboe ne| 3| Kwj Pzbi mv_ 400C Zvcgvvq Kvwib wewqv Ki wK Drcboe Ki? (wewPs cvDWvi cwZ) KwjPzbi mv_ 400C Zvcgvvq Kvwib wewqv Ki Kvjwmqvg Kviv nvBcvKvivBU A_vr wewPs cvDWvi Drcboe Ki| Ca(OH)2 + Cl2 C 0 40 Ca(OCl)Cl +H2O 4| jvwnZ dmdivm I evwgbi wgkb cvwb hvM Kij wK Drcboe ne? jvwnZ dmdivmi m evwgbi wgkb cvwb hvM Kij nvBWvRb evgvBW MwVZ nq| 2P + 3Br2 = 2PBr3 PBr3 + 3H2O = H3PO3 + 3HBr we. `. - Br2 Gi RvqMvq I2 wbj HI MwVZ nq| 5| NaI, Mvp mvjwdDwiK GwmW I MnO2 Gi wgkY D Kij wK nq? NaI, Mvp mvjwdDwiK GwmW I MnO2 Gi wgkY D Kij AvqvwWb cvIqv hvq| 2NaI + 3H2SO4 +MnO2 2KHSO4+MnSO4+2H2O + I2 we. `. - NaI Gi RvqMvq NaCl/NaBr wbj Cl2/Br2 MwVZ nq| Bnv nvjvRbi mvaviY cZ cbvjx| 7. Want more Updates http://tanbircox.blogspot.com 6| kxZj I jNy Pybi cvwbZ Kvwib Mvm Pvjbv Kij wK NU? kxZj I jNy Pybi cvwbZ Kvwib Mvm Pvjbv Kij `eYxq Kvjwmqvg KvivBW I Kvjwmqvg nvBcv KvivBU MwVZ nq| 2Ca(OH)2 + 2Cl2 = CaCl2 + Ca(ClO)2 + 2H2O 7| CuSO4 `eY KI hvM Kiv nj wK NU? CuSO4 `eY KI hvM Kiv nj wKDcvm AvqvWvBWi mv`v Aatc co Ges AvqvwWb MwVZ nq| 2CuSO4 + 4KI = Cu2I2 + 2K2SO4 + I2 8| K Zvcgvvq Kvwib MvmK NH3 Mvmi m wgkvbv nj wK NU? K Zvcgvvq Kvwib MvmK NH3 Mvmi m wgkvbv nj nvBWvKvwiK GwmW I bvBUvRb MwVZ nq| 2NH3 + 3Cl2 = N2 + 6HCl 9| K Zvcgvvq Kvwibi mv_ cvwbi wewqv `LvI| (Kvwibi Axq AmvgmZv) K Zvcgvvq Kvwib cvwbi mv_ wewqv Ki nvBWvKvwiK GwmW I nvBcvKvivm GwmW MVb Ki| ci nvBcvKvivm GwmW `Z weqvwRZ nq nvBWvKvwiK GwmW I AwRb Mvm Drcboe Ki| Cl2 + H2O = HCl + HClO 2HClO = 2HCl +O2 8. Want more Updates http://tanbircox.blogspot.com 1| mgxKiYmn eYbv Ki wK NU - (K) B_vwiq `eY B_vBj evgvBWi mv_ avZe mvwWqvgi wewqv Kivbv nq| (DUR wewqv) B_vwiq `eY B_vBj evgvBWi mv_ avZe mvwWqvgi wewqv Kivbv nj weDUb Drcboe nq| 2CH3 CH2 Br + 2Na B_vi CH3 -CH2 -CH2 -CH3 + 2NaBr (L) cvi AvBWi DcwwZZ cvwcbi mv_ HBr hvM Kiv nq cvi AvBWi DcwwZZ cvwcbi mv_ HBr hvM Kiv nj 1-evgv cvcb MwVZ nq| CH3-CH=CH2 +HBr H2O2CH3-CH2-CH2(Br) (M) Kviv B_bi mv_ cUvwkqvg mvqvbvBW hvM Ki cv hMK Av` wekwlZ Kiv nq| Kviv B_bi mv_ cUvwkqvg mvqvbvBW hvM Kij B_vBj bvBUvBj MwVZ nq| BnvK Av` weklb Kij cvcvbvwqK GwmW cvIqv hvq| CH3CH2Cl+KCN CH3CH2CN +KCl CH3CH2CN H2O,dilHCl CH3CH2COOH +NH4Cl (N) B_vi `eY mvwWqvgi DcwwZZ AvqvWvebwRb I CH3I Gi wgkY D Kiv nq| (DUR wdwUM wewqv) B_vi `eY mvwWqvgi DcwwZZ AvqvWvebwRb I CH3I Gi wgkY D Kij UjyBb MwVZ nq| + 2Na + CH3I + 2NaI (O) CHCl3 Gi m HNO3 wewqv Ki| CHCl3 Gi m HNO3 wewqv Kij Kvivwcwb (Kuv`yb Mvm Drcboe nq) CHCl3+HNO3 CCl3NO2 + H2O (P) wg_vbj, jvwnZ dmdivm I AvqvwWb Gi wgkY D Kiv nq| c_g jvwnZ dmdivm I AvqvwWb wewqv Ki dmdivm UvB AvqvWvBW MVb Ki| ci Bnv wg_vbji mv_ wewqv Ki wg_vBj AvqvWvBW MVb Ki| 2P + 3I2 2PI3 3CH3OH+PI3 CH3I + H3PO3 I CH3 9. Want more Updates http://tanbircox.blogspot.com wewqvwj mboe Ki| (K) CH3-CH2-Br + KOH(alc.) ? CH3-CH2-Br + KOH(alc.) CH2=CH2 +KBr +H2O (L) CH3-CH2-Br + KOH(aq) ? CH3-CH2-Br + KOH(aq.) CH3-CH2OH +KBr (M) +NaOH 400 C,150atm 0 ? +NaOH 400 C,150atm 0 +HCl icvi Ki t (K) B_vbj _K wg_vBj AvqvWvBW (CH3-CH2OH CH3I) B_vbjK Axq cUvwkqvg WvB vgU viv RvwiZ Kij B_vbwqK GwmW Drcboe nq| BnvK mvWvjvBg mn D Kij wg_b MwVZ nq| wg_bK AlCl3 Gi DcwwZZ AvqvwWbi mv_ wewqv Kivj wg_vBj AvqvWvBW nwVZ nq| CH3CH2OH+2[O] K2Cr2O7 HCl CH3COOH +H2O CH3COOH +NaOH.CaO CH4+Na2CO3.CaO CH4+I2 AlCl3CH3I + HI Cl Cl ONa 10. Want more Updates http://tanbircox.blogspot.com (L) Kvivdig _K wdbvBj AvBmv mvqvbvBW AvjKvnjxq KwK mvWv/KwK cUvk I Avbwjbi m KvivdigK 600C-700C DZvqy Kij wdbvBj AvBmvmvqvbvBW ev Kvwej Avwgb MwVZ nq| + CHCl3+KOH C 0 60 +KCl + 2H2O (M) Kvivdig _K mvwjmvjwWnvBW dbjK KwK mvWv ev KwK cUvmi Rjxq `ebi DcwwZZ 600C Zvcgvvq Kvivdigi mv_ D Kiv nj mvwjmvjwWnvBW MwVZ nq| + CHCl3+3KOH C 0 60 +3KCl + 2H2O (N) wg_vBj AvqvWvBW _K B_b B_vwiq `eY wg_vBj AvqvWvBWi mv_ avZe mvwWqvgi wewqv Kivbv nj B_b Drcboe nq| 2CH3 I + 2Na B_vi CH3 -CH3 + 2NaI (O) AvqvWvwg_b _K Avwgbv wg_b AvqvWvwg_bK AvjKvnjxq Avgvwbqv `ebi mv_ DP Pvc Ave bj D Kij Avwgbv wg_b MwVZ nq| CH3 I +NH3(alc) CH3NH2 +HI (P) AvqvWvwg_b _K wg_vbj Rjxq KwK mvWv/KwK cUvmi mv_ AvqvWvwg_b Gi wewqvq wg_vbj Drcboe nq| CH3I + KOH(aq.) CH3OH +KI (Q) wMMbvW weKviK _K cvBgvix (10) AvjKvnj wMMbvW weKviKi mv_ wg_vbvj Gi wewqvq cvBgvix (10) AvjKvnj MwVZ nq| NH3 NC OH OH CHO 11. Want more Updates http://tanbircox.blogspot.com (R) wMMbvW weKviK _K mKvix (20) AvjKvnj wMMbvW weKviKi mv_ B_vbvj Gi wewqvq mKvix (20) AvjKvnj MwVZ nq| (S) wMMbvW weKviK _K Uviwkqvix (30) AvjKvnj wMMbvW weKviKi mv_ cvcvbvb Gi wewqvq Uviwkqvix (30) AvjKvnj MwVZ nq| (T) wMMbvW weKviK _K KvewwjK GwmW wMMbvW weKviKi mv_ Kveb-WvB-AvBWi wewqvq KvewwjK GwWm MwVZ nq| (U) KvivebwRb _K dbj KvivebwRbK Av` mvwWqvg nvBWvvBWi mv_ D Kij mvwWqvg wdbvBW MwVZ nq| BnvK jNy HCl mn D Kij dbj cvIqv hvq +NaOH +HCl Cl ONa OH 12. Want more Updates http://tanbircox.blogspot.com 1| digvwjbi m Avgvwbhv hvM Kiv nq| digvwjb I Mvp NH3 `ebi wgkYK D Kij mv`v `vbv`vi nvwgw_wjb UUvwgb ev nvwgb bvgK hM Drcboe nq| 6HCHO + NH3 (CH2)6N4 + 6H2O 2| cvcvbvbi m CH3MgI hvM Ki cv hMK Av`-weklb Kiv nq- cvcvbvbi m CH3MgI hvM Ki cv hMK Av`-weklb Kij 30 AvjKvnj (2-wg_vBj cvcvbj- 2) MwVZ nq| (wewqvwU 6 Aavq S bs G mshy Kiv nqQ) 3| B_vbvji m 2,4-DNP hvM Kiv nq| B_vbvji m 2,4-DNP hvM Kij B_vjvj-2,4-WvBbvBUv wdbvBj nvBWvRvb MwVZ nq| CH3CHO + + H2O 4| cvcvbvbi m LiAlH4 Gi wewqv LiAlH4 viv cvcvbvb weRvwiZ nq cvcvbj-2 MVb Ki| CH3-CO-CH3 + [H] LiAlH4 CH3-CH(OH)-CH3 5| ccvbvbi m 2,4-DNP hvM Kiv nq| ccvbvbi m 2,4-DNP hvM Kij cvcvbvb-2,4-WvBbvBUv wdbvBj nvBWvRvb MwVZ nq| CH3COCH3 + + H2O 6| B_vbvjb m jNy NaOH hvM Kiv nq| jNy NaOH `eY 2 Aby B_vbvj hy nq 3-nvBWw weDUvbj bvgK wmivcx Zij AvjWj MVb Ki| 2CH3CHO jNy H2N-NH NO2 NO2 CH3-CH=N-NH NO2 NO2 H2N-NH NO2 NO2 CH3-C=N-NH NO2 NO2 CH3 CH3-C-CH2-CHO OH 13. Want more Updates http://tanbircox.blogspot.com 7| B_vbvji m dnwjs `eY hvM Kiv nq| B_vbvji ga dnwjs `eb hvM Kij dnwjs `eY DcwZ wKDwcK Avqb viv B_vbvj RvwiZ nq mvwWqvg B_vbqU Ges wKDwcK Avqb weRvwiZ nq wKDcvm AvBW cwiYZ nq| CH3-CHO+Cu(OH)2+NaOH CH3-COONa + Cu2O+H2O 8| B_vbvji mv_ PCl5 hvM Kiv nq| B_vbji mv_ PCl5 Gi wewqvq 1,1-WvBKviv B_b MwVZ nq| CH3CHO+PCl5 CH3-CH(Cl)2 9| B_vbvj Gi mv_ Zn-Hg I HCl Gi wewqv NUvbv nq| (wKgbmb weRviY) Zn-Hg I HCl Gi wewqvq Drcboe Rvqgvb nvBWvRb viv B_vbvj weRvwiZ nq B_b Drcboe Ki| CH3-CHO+4[H] ZnHg,HCl CH3-CH3 +H2O 10| B_vbvjK HCN Gi mv_ wewqv NUvbv nq| B_vbvj HCN Gi mv_ wewqv Ki B_vbvj mvqvbvnvBwWb MVb Ki| CH3 CHO+HCN CH3-CH-OH 11| Kvjwmqvg B_vbqUK cvZb Kiv nq| weMwjZ Kvjwmqvg B_vbqUK cvZb Kij cvcvbvb MwVZ nq| (CH3-COO)2Ca CH3-CO-C-H3+CaCO3 CN 14. Want more Updates http://tanbircox.blogspot.com mgxKiYjv c~Y Ki| 1| (HCOO)2Ca+(CH3COO)2Ca (HCOO)2Ca+(CH3COO)2Ca 2CH3-CHO+2CaCO3 2| (HCOO)2Ca (HCOO)2Ca HCHO+CaCO=3 3| CH3CHO+HCN ? H2O,H CH3CHO+HCN CH3-CH-OH H2O,H CH3-CH-COOH +NH3 4| HCHO+NH3 6HCHO+4NH3 (CH2)6N4 +6H2O 5| CH3-CO-CH3+C6H5-NH-NH2 CH3-CO-CH3+C6H5-NH-NH2 CH3-C=N-NH-C6H5 +H2O 6| CH3CHO+NH2OH CH3CHO+NH2OH CH3-C=N-OH+H2O (AvwmUvAvBg) 7| C6H5OH+NaOH(Mvp) C6H5OH+NaOH(Mvp) C6H5-COONa+C6H5-CH2OH 8| CH3-CO-CH3 +I2+NaOH CH3-CO-CH3 +3I2+4NaOH CHI3+CH3COONa+3NaI+3H2O 9| CH3-CHO +CH3-CH2-OH HCl CH3-CHO +CH3-CH2-OH HCl CH3-CH-OCH3+H2O CN OH CH3 CH3 OCH3 15. Want more Updates http://tanbircox.blogspot.com http://tanbircox.blogspot.com//70/3/02My-DVD-Collection--4U.html -, , [ __ _Useful -Bangla- e-books ] like 100% https://www.facebook.com/tanbir.ebooks http://www.facebook.com/tanbir.cox 16. Want more Updates http://tanbircox.blogspot.com 17. 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