Recently Active Chemistry Questions

http://www.goiit.com/posts/list/organic-chemistry-very-imp-pls-reply-989840.htm accha laga., so posted ...

can ny1 plz tel me when neo & iso is used in nomenclature??? & wats quaternary carbon? :0 ...

here "they" means "the book" please give me the answer soon of the last given question from "periodic table". ...

Ques) Among the following, the compound which does not forms a white precipitate on treatment with NaI in acetone is :- (a) CH3 CH2 I (b) CH3 CH2 C l (c) Ph CH2 C l (d) CH2 = CH - CH2 C l C l dentoes chlorine ...

An unknown alcohol gives blue ppt. in Victor Meyer's test.The no. of alpha H atoms in alcohol are ___ ? They gave the ans as 1,,saying R2CH-OH has one alpha H .. they have taken the underlined carbon to be alpha carbon,,but t ...

equal vol of 2 soln of pH=2 and pH=5 are mixed/Find pH of resulting soln.. ...

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1. Given the following equations: 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (l) ΔH° = -1170 kJ 4 NH3 (g) + 3 O2 (g) → 2 N2 (g) + 6 H2O (l) ΔH° = -1530 kJ Using these two equations, determine the heat of formation, ΔHf ...

do SNngp is applied fo rgroups on adjacent n carbons only? ...

plzz help rohit ...

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Among the foll the least bond angle around Central atom is in A] O3 B] I3- C] NO2- D] PH3 ...

more than one : 1)coke acts as reducing agent 2)Cu2S remain unaffect in roasting 3)final product we get is Blister Cu due to release of CO2 4)In bessemer furance only self reduction takes place not slag formation. ...

Which will have highest dipole moment? A] BF3 B] NH3 C] NF3 D] B2H6 ...

The bond angles of NH3,NH4+,NH2- are in the order.. ...

Which of the molecules will have polar bonds but zero dipole moment? A] O2 B] CHCl3 C] CF4 D] None of these ...

Largest bond angle A] H2O B] F2O C] Cl2O D] H2S ...

2MnO-4 + 5 H2O2 + 6H+ ---> 2Mn2+ + 8H2O + 5O2 Which of the following r not true ? A) H2O2 is oxidised to O2 B) H+ IS OXIDIZED TO WATER C)Oxdn no. of Mn changes by 6 D) H2O2 is reduced by H2O ...

To prepare anisole, which is the best path :- *Image* It can't be the first one bcoz c -Br bond is stable due to resonance hence nucleophilic attack is not preferred. But what abt the second and third reactions ????? ...

What is Pidgeon process for preparation of Mg? ...

More than 1 option maybe correct. The contact of fuel/flame and the substance to be heated is completely avoided in:- a)reverberatory furnace b)induction furnace c)muffle furnace d)blast furnace ...

100ml, of CH3COOH is titrated against 0.2NaOH. which is/are coreect statements? a. ph>7, at equivalence point b. ph<7 at 3/4th equivalence point c.ph<7 at equivalence point d. ph>7 when 80ml of NaOH is added ...

Which of the following will have permanent dipole moment? A] NO2 CO2 B] NO2 O3 C] SiF4 CO2 D] SiF4 NO2 Please tell the method as well :) ...

NO2 AND NO WAS MIXED IN THE RATIO OF 2 :1 AT 300K, IN ONE LITRE VESSEL AND MIXTURE WAS BROUGHT TO EQUILIBIRIUM FORMING TWO EQUILIBRIA 2NO2 <-----> N2O4 Kp=8.48 ATM-1 NO +NO2 <-----> N2O3 THE EQUILIBRIUM PRESSURE W ...

200ml of HCL(aq.) havin ph=2 is mixed with 300ml of NaOH(aq.) having ph =12. concentration of OH-1 in the mixture will be x *10-3, mole/l. value of x is..? a. 1 b. 2 c. 3 d. 4 ...

what will be the product when phenol is treated with nitrous acid??.. Plz tell the mechanism also.. ...

Write the type of R-S configuration of the following compounds ..... *Image* ...

no i am not talking abt the holllywood movie... here are two transformtaions... carry them out using proper reagents *Image* ...

i was searching abt the reactions of grignard reagent in the net.I got these pics. *Image* *Image* *Image* u can see more mindmaps here http://images.google.co.in/images?rlz=1C1GGLS_enIN321IN321&sourceid=chrome&q=grignard+rea ...

Match the column Column 1 [A] *Image* (g) → *Image* (g) [B] I2(s) → I2(aq) [C] N2O4(g) → 2NO2(g) [D] AgI(s) → Ag+(aq) + I-(aq) Column 2 [P] *Image* [Q] *Image* [R] *Image* [S] *Image* Note: "→" represents an reversi ...