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

A charge passing through a resistor varies with time as shown in the figure. The anmount of heat generated in time t is best represented ( as a function of time ) by A charge passing through a resistor varies with time as shown in the figure. The anmount of heat generated in time t [...]

Carbogen is a mixture of (a) CO2 + N2 (b) CO + O2 (c) CO2 + O2 (d) C + H2 + N2 Carbogen is a mixture of (a) CO2 + N2 (b) CO + O2 (c) CO2 + O2 (d) C + H2 + N2 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by [...]

H2O2 on reaction with PbS gives (a) PbO (b) PbSO4 (c) PbO2 (d) PbHSO4 H2O2 on reaction with PbS gives (a) PbO (b) PbSO4 (c) PbO2 (d) PbHSO4 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Formation of in numberable compounds of carbon is due to its (a) High reactivity (b) Catenation tendency (c) Covalent and ionic tendency (d) Different valency Formation of in numberable compounds of carbon is due to its (a) High reactivity (b) Catenation tendency (c) Covalent and ionic tendency (d) Different valency November 18, 2020 Category: Uncategorised [...]

Lead nitrate on heating gives lead oxide, nitrogen dioxide and oxygen. This reaction is known as (a) Combustion (b) Combination (c) Displacement (d) Decomposition Lead nitrate on heating gives lead oxide nitrogen dioxide and oxygen. This reaction is known as (a) Combustion (b) Combination (c) Displacement (d) Decomposition November 18, 2020 Category: Uncategorised (JEE Advanced [...]

The number of unpaired electrons in carbon atom is (a) One (b) Two (c) Three (d) Four The number of unpaired electrons in carbon atom is (a) One (b) Two (c) Three (d) Four November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

A capacitor of capacitance 10mF is charged up a potential difference of 2V and then the cell is removed. Now it is connected to a cell of emf4V and is charged fully. In both cases the polarities of the two cells are in the same directions. Total heat produced in the second charging process is [...]

In the diagrams, all right bulbs are identical , and all cells are ideal and identical . In which circuit ( a, b, c , d ) will the bulbs be dimmest ? all right bulbs are identical and all cells are ideal and identical . In which circuit ( a B C d ) [...]

In the preparation of amorphous silicon, HF acid is used to remove (a) Mg (b) SiO2 (c) Si (d) None of these HF acid is used to remove (a) Mg (b) SiO2 (c) Si (d) None of these In the preparation of amorphous silicon November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]

A battery is supplying power to a tape recorder by cable of resistance of 0.02 ohm. If the battery is generating 50 W power at 5 V , then the power received by the tape recorder is A battery is supplying power to a tape recorder by cable of resistance of 0.02 ohm. If the [...]