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Colours in complexes are decided by the constituents of the coordination sphere, right? So why do K4[Fe(CN)6] and Fe2[Fe(CN)6] differ in colour though coordination sphere is intact? ...
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In Zeigler Natta polymerisation of ethylene what is the active species?? ...
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single choice correct Q1 WHich pair can form alloy ? a)Zn,Pb b)Fe,Hg c)Fe,C d)C,Pt Q2 consider [Ag(NH3)2]+,[Ag(CN)2]-,[Ag(S2O3)2]3- Which of the following are true abt these ?? a)Ag+ acts as lewis base b)hybd of Ag+ is sp2 c) ...
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HELLO ALL. ANYONE PREPARING FOR IIT-JEE WOULD SURELY GET HIS TOPICS DONE, BUT DURING THEIR PREPARATION, MORE THAN MANY,NEGLECT A SUBJECT CALLED INORGANIC CHEMISTRY. THIS ALSO CREATES A DIFFERENCE IN RANKS.TO,AVOID THAT FOR TI ...
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which of the following is the weakest acid in H2SO4 ?? a) ClO4- b)NO3- c) HSO4- d) CN-. ...
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does dinitrogen is a colourless gas at 1) room temp 2) elevated temp 3)or both the temp please explain ...
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AgCl is col-less while AgI is yellow. ... coz.. a) there's d-d transition in AgI but not in AgCl. b) the polarisability of Cl is less , covalent contributiob is less , so it is white. c) col of AgI is coz of transfre of elect ...
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**I am hiding the solved questions....** 1)Hydrolysis of PI3 gives ?? 2)Decomposition of H2O2 is lowed down by addn of ?? 3)compound which is used in space vehicels to absorb CO2 and liberate O2 a)NaOH b)NaO c)Na2O2 d)CaO and ...
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1.A substance that will deliquesce in the normal laboratory atmosphere is: (a) Cuso4 (b) NaOH (C) SiO2 (d) All of these ...
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Which of the following statements are true ? a.)HF is less polar then HBr b.)absolutely pure water does not contains ions c.)chemical bond formation takes place when force of attraction overcomes forces of repulsion d)in cova ...
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Q1. multi: cooloidal gold can be prepared by (a) bredig's arc method (b) reduction of AuCl3 (c) hydrolysis (d) peptization Q2. multi: Select correct statements (a) Buring carbylamine rkn, intermediate is carbene (b) During Do ...
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1. How does Bond angle vary with the Electronegativity of Central Atom and Surrounding/Co ordinated atoms and WHY? 2. Phosphorus Pentachloride exists in SOlid state as -- 3. Compare the Shapes and geometry of Nitrite and Nitr ...
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The critical temperature of water is higher than that of O2 because the H2O molecule has : A. fewer electron than O2 B. two covalent bonds C. V-shape D. dipole moment Fiitjee has given two answers to this q so im not sure of ...
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IIT-JEE CHEMISTRY Q.1 Reactions of aluminium with 1. O2 2. N2 3. Cl2 4. Cr2O3 5. Mn3O4 6. HCl 7. H2SO4(Dil.) 8. H2SO4 (Conc.) 9. HNO3 10. NaOH 11. AlCl3 Q.2 Reactions of Al(OH)3 with 1. Acid 2. NaOH 3. Heating Below 450ºC 4. ...
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Q1 Boiling CuCl2 with excess copper turnings and conc HCl gives ?? Q2 Cu2+ is more stable than Cu+ due to ?? Q3 CuSO4 + lime = ?? Q4 Yellow mercuric oxide is obtained by? Q5 The iron salt used in blue prints is ?? ...
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These are my problems rather than a test a few gud problems in inorganic 1)Which of the following has the highest electrode potential? a. Be b. Mg c. Ca d. Ba 2)Neutrons are produced by a. Ra b. Ba c. Sr d. Be 3)The most elec ...
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second ionization enthalpy of Cl>S.why? ...
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Q1 True statements regarding copper sulfate a)it reacts with NaOH and glucose to give Cu2O b)it reacts with KCl to give Cu2O c)it gives CuO on st. heating in air d)it reacts with KI to give brown color *More than one correct* ...
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Q1 BN can be obtained by reaction of boron with a)NH3 b)N2 c)KCn d)KNO3 Q2 WHich of the following doesnt give N2 on heating a)NH4Cl b)(NH4)2Cr2O7 c)NaN3 d)NaNH2 I ma sure abt b) but what abt other options ? Q3 Which of the fo ...
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Arrange the ligands in decreasing order of bascity: PPh3,PMe3,PH3,P(OR)3,PF3 ...
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1)Structure of H2S205 plzz? Does it have S-S bomd ...
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** Only Q6 is more than one correct ** Q1 BeO +NaOH → ? Q2 Which is used for fixing atmospheric nitrogen ? a)nitrolim b)Li3N c)Mg3N2 d)all I am sure abt a)..but not abt others.. Q3 BaC2 +N2 +heat → ?? Q4 CaC2 +N2 +heat ↠...
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these r the question i faced in bitsat 2009 on yesterday 1. wat is EDTA A hexadentate ligand B bidentate ,, C tetradentate ,, D pentadetate ,, i mark A 2.wat is the denticity of oxalate A hexadentate B bidentate C tetradentat ...
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$Q:$\Rightarrow $ Which one is more acidic from, $sp$ and $sp_{3}.$ ...
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1.hypervalent compound is(are):- A.SO3-2 B.PO4-3 C.SO4-2 D.ClO4-1 what r hypervalent compounds? ...
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Q1. Zero magnetic moment of K2NiF6 is due to (a) Low spin Ni(IV) d6 (b) High spin Ni(IV) d6 (c) Low spin/ high spin not applicable (my option) I feel that question is wrong as given in JD LEE that the compound is intensely ye ...
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Q1 St acid among follwing in non polar acetic acid medium is ? a)HF b)H2SO4 c)HClO4 d)HI Q2 Write ionic eqn for NaH +H2O→ ? Q3 Why there is very litle diff in acid strength of H3PO2,H3PO3,H3PO4 ?? Q4 T/F i)carbonates of Na, ...
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Pl. help yaarion.............. pehle hi questn me clean bowled :( :'( *Image* ANS : A ...
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HELP THE DOGGY!!!! LOL *Image* ...
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Q1. The most stable complex is (a) [Cu(NH3)6]2+ (b) [Cu(NH3)4en]2+ (c) [Cu(NH3)2(en)2]2+ (d) [Cu(en)3]2+ ans given (c) Q2. Choose correct statement (a) *Image* on oxidation with HIO4 gives cyclopentanone and formaldehyde (b) ...