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

Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda. When CO2 is bubbled through a solution of A, Chemical A is used for water softening to remove temporary hardness. A reacts with sodium carbonate to generate caustic soda. When CO2 is bubbled through a [...]

The hydride ion H- is a stronger base than its hydroxide ion OH-. Which of the following reactions will occur if sodium hydride (NaH) is dissolved in water. The hydride ion H- is a stronger base than its hydroxide ion OH-. Which of the following reactions will occur if sodium hydride (NaH) is dissolved in [...]

Which one of the following substances is used in the laboratory for a fast drying of neutral gases (a) Phosphorus pentoxide (b) Active charcoal Which one of the following substances is used in the laboratory for a fast drying of neutral gases (a) Phosphorus pentoxide (b) Active charcoal November 12, 2020 Category: Uncategorised (JEE Advanced [...]

Match the anionic species given in Column 1 that are present in the ore(s) given in Column 2 Match the anionic species given in Column 1 that are present in the ore(s) given in Column 2 November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Match the extraction processes listed in Column 1 with metals listed in Column 2. Match the extraction processes listed in Column 1 with metals listed in Column 2. November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Galena (an ore) is partially oxidized by passing air through it at high temperature. After some time, the passage of air is stopped, but the heating is continued in a closed furnace but the heating is continued in a closed furnace Galena (an ore) is partially oxidized by passing air through it at high temperature. [...]

The number of reducing agents involved in the extraction of iron (as pig iron) using blast furnace from ore haematite is The number of reducing agents involved in the extraction of iron (as pig iron) using blast furnace from ore haematite is November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Auto reduction process is used in extraction of (a) Cu (b) Hg (c) Al (d) Fe Auto reduction process is used in extraction of (a) Cu (b) Hg (c) Al (d) Fe November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are) (a) Impure Cu strip is used as cathode Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are) (a) Impure Cu strip is used as cathode November 12, 2020 Category: Uncategorised [...]

Upon heating with Cu2S, the reagent(s) that give copper metal is/are (a) CuFeS2 (b) CuO (c) Cu2O (d) CuSO4 the reagent(s) that give copper metal is/are (a) CuFeS2 (b) CuO (c) Cu2O (d) CuSO4 Upon heating with Cu2S November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,