List of top Chemistry Questions on Methods Of Purification Of Organic Compounds asked in AP EAMCET

Which of the following sets of reagents convert toluene to benzaldehyde? \includegraphics[]{158.png}
IUPAC names of the following compounds A and B are: \includegraphics[]{160.png}
Cobalt (III) chloride forms a green-colored complex ‘X’ with NH3_3. Number of moles of AgCl formed when excess AgNO3_3 solution is added to 100 mL of 1M solution of ‘X’ is:
Identify the method of preparation of a colloidal sol from the following:
\includegraphics[width=4cm]{148.png} X, Y are oxoacids of phosphorous. The number of P – OH bonds in X, Y respectively is:
Which of the following occurs with KMnO4_4 in neutral medium?
Number of deactivating groups among: −Cl,−SO3H,−OH,−NHC2H5,−COOCH3,−CH3 -Cl, -SO_3H, -OH, -NHC_2H_5, -COOCH_3, -CH_3
Which one of the following statements is NOT correct about the compounds of alkaline earth metals?
The correct order of atomic radii of N, F, Al, Si is:
The correct order of covalent bond character of BCl3,CCl4,BeCl2,LiCl BCl_3, CCl_4, BeCl_2, LiCl is:
In which of the following pairs, both molecules possess dipole moment?
A flask contains 98 mg of H₂SO₄. If 3.01×1020 3.01 \times 10^{20} molecules of H₂SO₄ are removed from the flask, the number of moles of H₂SO₄ remaining in the flask is (N=6.02×1023 N = 6.02 \times 10^{23} ):

Which of the following are general methods for the preparation of 1-iodopropane? 

In Dumas method one gram of carbon compound gives 50 mL50 \,mL of N2N _{2} at 300 K300\, K and 740 mm Hg740 \,mm\, Hg pressure. If the aqueous tension at 300 K300\, K is 15 mm Hg15\, mm\, Hg, what is the percentage of nitrogen in it?