Question Answers

Yellow ammonium sulphide solution is a suitable reagent for the separation of (a) HgS and PbS (b) PbS and Bi2S3 (c) Bi2S3 and CuS (d) CdS and As2S3 Yellow ammonium sulphide solution is a suitable reagent for the separation of (a) HgS and PbS (b) PbS and Bi2S3 (c) Bi2S3 and CuS (d) CdS and [...]

A light greenish coloured salt was soluble in water. On passing H2S into the solution a black precipitate was obtained which dissolve readily in HCl. The metal ion present is (a) Co +2 A light greenish coloured salt was soluble in water. On passing H2S into the solution a black precipitate was obtained which dissolve [...]

When H2S gas is passed through the HCl containing aqueous solutions of CuCl2, HgCl2, BiCl3 and CoCl2, which does not precipitate out (a) CuS (b) HgS (c) Bi2S3 (d) CoS BiCl3 and CoCl2 HgCl2 When H2S gas is passed through the HCl containing aqueous solutions of CuCl2 which does not precipitate out (a) CuS (b) [...]

The C-H bond distance is the longest in (a) C2H2 (b) C2H4 (c) C2H4Br2 (d) C6H6 The C-H bond distance is the longest in (a) C2H2 (b) C2H4 (c) C2H4Br2 (d) C6H6 December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In which of the following the central atom does not use sp^3 hybrid orbitals in its bonding (a) BeF3^- (b) OH3^+ (c) NH2^- (d) NF3 In which of the following the central atom does not use sp^3 hybrid orbitals in its bonding (a) BeF3^- (b) OH3^+ (c) NH2^- (d) NF3 December 6, 2020 Category: Uncategorised [...]

In which of the following pairs the two species are not isostructural In which of the following pairs the two species are not isostructural December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In which of the following molecules / ions are all the bonds not equal (a) SF4 (b) SiF4 (c) XeF4 (d) BF4^- In which of the following molecules / ions are all the bonds not equal (a) SF4 (b) SiF4 (c) XeF4 (d) BF4^- December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

The states of hybridization of boron and oxygen atoms in boric acid ( H3BO3 ) are respectively The states of hybridization of boron and oxygen atoms in boric acid ( H3BO3 ) are respectively December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

With K4(Fe(CN)6), Cu 2+ ion gives (a) A blue ppt (b) A bluish green ppt (c) A blood red ppt (d) A reddish brown ppt Cu 2+ ion gives (a) A blue ppt (b) A bluish green ppt (c) A blood red ppt (d) A reddish brown ppt With K4(Fe(CN)6) December 6, 2020 Category: Uncategorised [...]

Which of the following reactions with H2S does not produce metallic sulphide (a) ZnCl2 (b) CdCl2 (c) COCl2 (d) CuCl2 Which of the following reactions with H2S does not produce metallic sulphide (a) ZnCl2 (b) CdCl2 (c) COCl2 (d) CuCl2 December 6, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,