Recently Active Chemistry Questions

what is : a) REgioselectivity b) STereospecific c) STereoselective d) STereogenic [7][7][7][7] ...

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) ...

\begin{matrix} \textup{Column I} & \textup{Column II} \\ \textup{(a) Stability of complex}&\textup{(p) Electronic configuration of metal/metal ion} \\ \textup{(b) shape of complex} & \textup{(q) chelation effect}\\ \textup{(c ...

*Image* this one seemed me to be simple clemmensen reduction IS IT ??? ...

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Q1 [CoCl2(NH3)4]+ + Cl- → [CoCl3(NH3)3] +NH3 If the product shows only one type of isomer then reactant must be trans ..is my conclusion correct ?? Q2 Cu+ exists as s1d9 or d10 ?? ...

(CH3)2-CH-CH2-CH3+Cl2→ X in presence of light. X is a monohalogenated product.What is X.Give structure with explanation. ...

1) Which of the folll react wid PCl5 ? (multi options correct) Acetaldehyde formaldehyde acetone ethylalcohol single option correct 2)The smallest aldose able to form a cyclic hemiacetal is ? triose wid 3 carbons pentose wid ...

1)dissolution process is endothermic 2)during dissolution there is interactions between H2O and there the dissolving chemical or bonds are formed.......whenevr bonds are formed energy is released assert if 1) or 2) both is tr ...

Find the Bond angle, hybridisation and shape of (1)SF4 (2)XeOF4 (3)ClF3 (4)NH4+ ...

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what is the effect of adding inert gas at constant pressure to a system? ...

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1)A graph is plotted between PVm on y-axis and P on x-axis. The intercept is (Vm is molar volume). a)R b)R+a/b c)RT d)RT-b/a 2) a)A ring shaped tube contains two ideal gases with molecular weights 32 and 28. Both these gases ...

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Which species is not coloured ? (a) Ni(DMG)2 (b) [Co(SCN)4]2- (c) [Fe(H2O)5SCN]2+ (d) [Al(OH)4]- ...

Which Nitrogen oxide does not have a coordinate bond ?? Its NO right ? ...

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Q1 Solublity order Beso4,MgSO4,CaSO4,SrSO4 Q2 2nd ionisation enthalpy Cr,V,T,Mn Q3 *Image* ...

Convert Benzene to - 1) Ph-CH2-CH2-D 2) Ph-CHD-CH3 3) para-D-(C6H4-CH2CH3) In not more than "X" no. of steps, where "X"→ ∞ .... :D P.S. They are Doubts. ...

1) Total no. of stereoisomers for- Me--CH(Cl)--CH=CH--CH=C=C(Me)--Me .....? 2) Total no. of products on MOnochlorination of n-Pentane in the presence of sunlight ? 3)Arrange in Decreasing order of Rate of ElectroPhillic Subst ...

*Image* 2 moles of the above compound + H+ ---> ...

Please can anyone propose mechanism for this *Image* ...

is there any shortcut to determine whether a species is paramagnetic or dimagnetic without actually writing the electronic configuration? ...

In reformatsky reaction, why doesnt the ester get hydrolysed when H+ is added after the nucleophilic addition?? ...

Q1 *Image* Q2 *Image* Q3 Which of the following is true? (a) O2– is a hard ion (b) O2+ is a hard ion (c) O2– is liquid ion (d) Both (b) and (c) are correct. ...

*Image* Indicate the bond energies of C-H bonds indicated by a, b ,c in ascending order. Please give reasons. ...

I WANT TO KNOW WHAT IS ANTI- AROMATIC. NEVER LEANT ANY THEORY ON IT. NEED HELP GUYS.....PLEASE HELP ME KNOW IT !!!! ...