Question Answers

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) ,

The carbon-based reduction method is NOT used for the extraction of (a) Tin from SnO2 (b) Iron from Fe2O3 The carbon-based reduction method is NOT used for the extraction of (a) Tin from SnO2 (b) Iron from Fe2O3 November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Extraction of metal from the ore cassiterite involves (a) Carbon reduction of an oxide ore (b) Self-reduction of a sulphide ore Extraction of metal from the ore cassiterite involves (a) Carbon reduction of an oxide ore (b) Self-reduction of a sulphide ore November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

Of the following metals that cannot be obtained by electrolysis of the aqueous solution of their salts are (a) Ag (b) Mg Of the following metals that cannot be obtained by electrolysis of the aqueous solution of their salts are (a) Ag (b) Mg November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

In the electrolysis of alumina, cryolite is added to (a) Lower the melting point of alumina (b) Increase the electrical conductivity cryolite is added to (a) Lower the melting point of alumina (b) Increase the electrical conductivity In the electrolysis of alumina November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP [...]

The number of different metals present in the ore copper pyrites is The number of different metals present in the ore copper pyrites is November 12, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,