Question Answers

Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in each one of these. Which solution will turn Blue Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in [...]

In smelting of iron, which of the following reactions takes place in Blast furnace at 400 C – 600 C (a) CaO + SiO2 to CaSiO3 In smelting of iron which of the following reactions takes place in Blast furnace at 400 C - 600 C (a) CaO + SiO2 to CaSiO3 December 2, 2020 [...]

Which statement is not correct (a) Potassium permanganate is a powerful oxidising substance (b) Potassium permanganate is a weaker oxidising substance than potassium dichromate Which statement is not correct (a) Potassium permanganate is a powerful oxidising substance (b) Potassium permanganate is a weaker oxidising substance than potassium dichromate December 2, 2020 Category: Uncategorised (JEE Advanced [...]

The equivalent weight of potassium permaganate for acid solution is (a) 158 (b) 31.6 (c) 52.16 (d) 79 The equivalent weight of potassium permaganate for acid solution is (a) 158 (b) 31.6 (c) 52.16 (d) 79 December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction, the oxidation number of chromium Acidified potassium dichromate is treated with hydrogen sulphide. In the reaction the oxidation number of chromium December 2, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

What is the product obtained when MnO2 solution is boiled with PbO2 and concentrated HNO3 (a) MnO2 (b) HMnO4 (c) Mn3O4 (d) PbMnO4 What is the product obtained when MnO2 solution is boiled with PbO2 and concentrated HNO3 (a) MnO2 (b) HMnO4 (c) Mn3O4 (d) PbMnO4 December 2, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

A compound of zinc which is white in cold state and yellow in hot state is (a) ZnS (b) ZnO (c) ZnCl2 (d) ZnSO4 A compound of zinc which is white in cold state and yellow in hot state is (a) ZnS (b) ZnO (c) ZnCl2 (d) ZnSO4 December 2, 2020 Category: Uncategorised (JEE Advanced [...]

The electric field and the electric potential at a point are E and V respectively. The electric field and the electric potential at a point are E and V respectively. December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 1 - Electrostatics , Part 2 ,

In the following graph, the magnitude of maximum electric field is In the following graph the magnitude of maximum electric field is December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 1 - Electrostatics , Part 2 ,

Some equipotential surfaces are shown in figure. The magnitude and direction of electric field is Some equipotential surfaces are shown in figure. The magnitude and direction of electric field is December 1, 2020 Category: Cengage NEET by C.P Singh , Chapter 1 - Electrostatics , Part 2 ,