Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)

Moissan boron is (a) Amorphous boron of ultra purity (b) Crystalline boron of ultra purity (c) Amorphous boron of low purity Moissan boron is (a) Amorphous boron of ultra purity (b) Crystalline boron of ultra purity (c) Amorphous boron of low purity November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

When orthoboric acid (H3BO3) is strongly heated, the residue left is (a) Metaboric acid (b) Boron (c) Boric anhydride (d) Borax the residue left is (a) Metaboric acid (b) Boron (c) Boric anhydride (d) Borax When orthoboric acid (H3BO3) is strongly heated November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

In the reaction B2O3 + C + Cl2 to A + CO. The A is (a) BCl3 (b) BCl2 (c) B2Cl2 (d) CCl2 In the reaction B2O3 + C + Cl2 to A + CO. The A is (a) BCl3 (b) BCl2 (c) B2Cl2 (d) CCl2 November 17, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

Boron cannot form which one of the following anions (a) BF6 3- (b) BH4 – (c) B(OH)4 – (d) BO2 – Boron cannot form which one of the following anions (a) BF6 3- (b) BH4 - (c) B(OH)4 - (d) BO2 - November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The structure of diborane (B2H6) contains (a) Four 2c-2e bonds and two 3c-2e bonds (b) Two 2c-2e bonds and four 3c-2e bonds The structure of diborane (B2H6) contains (a) Four 2c-2e bonds and two 3c-2e bonds (b) Two 2c-2e bonds and four 3c-2e bonds November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

Heating an aqueous solution of aluminium chloride to dryness will give (a) AlCl3 (b) Al2Cl6 (c) Al2O3 (d) Al(OH)Cl2 Heating an aqueous solution of aluminium chloride to dryness will give (a) AlCl3 (b) Al2Cl6 (c) Al2O3 (d) Al(OH)Cl2 November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Aluminium chloride exists as dimer, Al2Cl6 in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives Al2Cl6 in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water Aluminium chloride exists as dimer it gives November 17, 2020 [...]

The compound which exists as a dimer is (a) LiCl (b) MgCl2 (c) AlCl3 (d) SiCl4 The compound which exists as a dimer is (a) LiCl (b) MgCl2 (c) AlCl3 (d) SiCl4 November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which of the following is non-existent (a) AlF6 3- (b) CoF6 3- (c) BF6 3- (d) SiF6 2- Which of the following is non-existent (a) AlF6 3- (b) CoF6 3- (c) BF6 3- (d) SiF6 2- November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which among the following is not a borane (a) B2H6 (b) B3H6 (c) B4H10 (d) None of these Which among the following is not a borane (a) B2H6 (b) B3H6 (c) B4H10 (d) None of these November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,