Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
An aqueous solution of borax is (a) Neutral (b) Acidic (c) Basic (d) Amphoteric
17
Nov
An aqueous solution of borax is (a) Neutral (b) Acidic (c) Basic (d) Amphoteric An aqueous solution of borax is (a) Neutral (b) Acidic (c) Basic (d) Amphoteric November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Boron shows single oxidation state due to absence of (a) Inert pair effect (b) Screening effect (c) Isotope effect (d) None of these
17
Nov
Boron shows single oxidation state due to absence of (a) Inert pair effect (b) Screening effect (c) Isotope effect (d) None of these Boron shows single oxidation state due to absence of (a) Inert pair effect (b) Screening effect (c) Isotope effect (d) None of these November 17, 2020 Category: Uncategorised (JEE Advanced Physics by [...]
Which is true for an element R present in III group of the periodic table (a) It is gas at room temperature (b) It has oxidation state of +4 (c) It forms R2O3
17
Nov
Which is true for an element R present in III group of the periodic table (a) It is gas at room temperature (b) It has oxidation state of +4 (c) It forms R2O3 Which is true for an element R present in III group of the periodic table (a) It is gas at room temperature [...]
Al2O3 formation involves evolution of a large quantity of heat, which makes its use in (a) Deoxidiser (b) Indoor photography (c) Confectionary
17
Nov
Al2O3 formation involves evolution of a large quantity of heat, which makes its use in (a) Deoxidiser (b) Indoor photography (c) Confectionary Al2O3 formation involves evolution of a large quantity of heat which makes its use in (a) Deoxidiser (b) Indoor photography (c) Confectionary November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Aluminium is not used (a) In silvery paints (b) For making utensils (c) As a reducing agent (d) As oxidizer in metallurgy
17
Nov
Aluminium is not used (a) In silvery paints (b) For making utensils (c) As a reducing agent (d) As oxidizer in metallurgy Aluminium is not used (a) In silvery paints (b) For making utensils (c) As a reducing agent (d) As oxidizer in metallurgy November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
The product/s formed when diborane is hydrolysed is/are (a) B2O3 and H3BO3 (b) B2O3 only (c) H3BO3 and H2 (d) H3BO3 only
17
Nov
The product/s formed when diborane is hydrolysed is/are (a) B2O3 and H3BO3 (b) B2O3 only (c) H3BO3 and H2 (d) H3BO3 only The product/s formed when diborane is hydrolysed is/are (a) B2O3 and H3BO3 (b) B2O3 only (c) H3BO3 and H2 (d) H3BO3 only November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
Which of the following does not exist in free form (a) BF3 (b) BCl3 (c) BBr3 (d) BH3 (e) None of these
17
Nov
Which of the following does not exist in free form (a) BF3 (b) BCl3 (c) BBr3 (d) BH3 (e) None of these Which of the following does not exist in free form (a) BF3 (b) BCl3 (c) BBr3 (d) BH3 (e) None of these November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
The hardest substance amongst the following is (a) Be2C (b) Graphite (c) Titanium (d) SiC (e) B4C
17
Nov
The hardest substance amongst the following is (a) Be2C (b) Graphite (c) Titanium (d) SiC (e) B4C The hardest substance amongst the following is (a) Be2C (b) Graphite (c) Titanium (d) SiC (e) B4C November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Inorganic benzene is (a) B2H6 (b) B3N3H6 (c) B3O3H6 (d) (BH3)3
17
Nov
Inorganic benzene is (a) B2H6 (b) B3N3H6 (c) B3O3H6 (d) (BH3)3 Inorganic benzene is (a) B2H6 (b) B3N3H6 (c) B3O3H6 (d) (BH3)3 November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
In Hall’s process, the main reagent is mixed with (a) NaF (b) Na3AlF6 (c) AlF3 (d) None of these
17
Nov
In Hall’s process, the main reagent is mixed with (a) NaF (b) Na3AlF6 (c) AlF3 (d) None of these In Hall's process the main reagent is mixed with (a) NaF (b) Na3AlF6 (c) AlF3 (d) None of these November 17, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,